However, the Moon could have a layer of subsurface permafrost beneath which liquid water might be trapped.
The ultraviolet irradiation did not kill subsurface organisms, and a thin layer of soil served as an ultraviolet shield.
This simulator serves as a model to study the wave of darkening, thus supporting the hypothesis that the pole-to-equator wave of darkening is correlated with the availability of subsurface water.
Watching the cellar excavation for unexpected subsurfacewater is also an item that no experienced architect neglects.
It terminated at an old subsurface drainage line constructed years ago when some one, who had the gift, brought forth fine crops of corn, potatoes, and beans there.
A subsurface drain, some fifty feet long and connected with the gutter of an intersecting road, took care of the lawn.
Traumatic affection of muscles of locomotion may be surface or subsurface--subsurface with little injury done the skin and fascia, but with subsurface extravasation of blood and masceration of tissue.
A detachment of the Cadre would land on Charon, Planet Pluto's moonlet, and fuse and seal sections of the moonlet's surface and subsurface same as on Pluto.
In these latest operations, one of our patrols was known to be scouting the Plutonian outback for subsurface tunnels and galleries where unscrupulous adventurers sneak off to hide after preying on our outposts and transports.
These subsurface crawl spaces and links are our only way.
He had accepted expulsion from the place of his birth as the alternative to the court's sentence of labor in Callisto's encapsulated subsurface mines.
Myra left for headquarters to cover; the remainder strung out behind Hodak to the subsurface vault where he'd left Ram.
The first task of the initial phase was to land on Pluto's surface, seek out stable surfaces or create them by fusing subsurface strata to sufficient depth for support of massive structures.
Too much trouble to collapse the subsurface tunnels, I suppose.
Construction would proceed concurrently on surface and subsurface utility and life support facilities essential to human habitation.
The same can be said for subsurfacetechnical facilities.
Well, I got a problem there too; the subsurfacejunction branches off in several directions.
No doubt that they're Narval's thugs and they're going to clamp a tow beam on the stores and haul them off to some subsurface storage or assembly shop.
The view screen readouts showed subsurface galleries, several outlined in irregular outlines but empty, others reflected high-mass warship configurations.
A white, steady glow identified Coldfield, the surrounding red and blue lines identified scores of subsurface passageways and rutted trails that curved away from the domed city in all directions.
The entire sector from which this attack was launched is honeycombed with utility passages and subsurface supply and maintenance shops," he said.
Seabirds, however, are visible above the surface, in numbers that can reflect changes in the marine environment that occur below the surface, since many depend on the subsurface quality that reflects populations of fish.
In fact, during several previous administrations, Mollenhauer had maintained a subsurface connection with the treasury, but never so close a one as could easily be traced.
Figure 28 shows the section of a well where no such precautions have been taken, and it is evident that not only surface wash, but subsurfacepollution may readily contaminate the water.
A subsurface burst is an explosion in which the detonation is below the surface of land or water.
Nuclear blasts are classified as air, surface, or subsurface bursts.
At 125th Street and Lenox Avenue one of the most complicated network of subsurface structures was encountered.
Under Broadway, Manhattan, the work is through sand, the vehicular and electric street car traffic, the network of subsurface structures, and the high buildings making this one of the most difficult portions of the road to build.
A number of interesting methods of providing for subsurface structures are shown in photographs pages 51 to 54.
Frequently they are seen along dry ravines where their thirsty roots tap the subsurface drainage that lies hidden below.
Most geologists think this replacement process occurs when subsurface or ground water containing soluble and colloidal minerals dissolves a molecule of the bone and immediately replaces it with a new mineral.
I have some doubt if it will be worth the expense involved to have the samples of subsurface and subsoil analyzed at this time; but you might save them for future use if desired.
The hole was then enlarged to the twenty-inch depth but the additional soil removed was discarded as a mixture of the surface and subsurface strata.
Then, the hole was extended and the subsurface boring removed without touching the surface soil.
The phosphorus content of our surface soil is greater than that of the subsurface, but below the subsurface the phosphorus again increases.
In order to recharge these batteries and gain motive power for subsurface travel, the submarine has to come to the surface.
The submarine has two sets of engines, one for surface travel and the other for subsurface travel.
But the British and French navies were not the only ones which, at this time, were depending upon the patrol as a protection against the subsurface boat.
For this subsurface vessel, when used as successfully as it was used by the Germans in 1917, deprives the surface navy of that advantage which has proved most decisive in other wars.
Indeed, the only respect in which the subsurface boat differs essentially from all other war vessels is in this power of becoming invisible.
It also soon appeared that the German U-boats would not fight our subsurface vessels.
This interval gives the subsurface boat a certain chance to get away; but its under-water speed is moderate, and so by the time the destroyer reaches the critical spot, the submarine has advanced but a short distance away from it.
Yet the determining fact, as we were now to learn, was that this control of the surface was to give us the control of the subsurface also.
Its great speed also made it possible for an airplane or dirigible to patrol a much greater area of water than a surface or a subsurface vessel.
These great subsurface vessels were introduced as an "answer" to the convoy system.
That is to say, complete control of the subsurface by Germany would have turned against England the blockade, the very power with which she had planned to reduce the German Empire.
By carefully mapping out the variations with time in the locations and depths of earthquake foci, scientists in effect can track the subsurface movement of magma, horizontally and vertically.
When the alarm signal is heard to change the course from surface navigation to subsurface navigation, several previously designated members of the crew take their post of duty in the commander's turret.
They are supplied by a large storage battery, which consumes no air and forms the motive power during subsurface navigation.
A weakness of the "Campbell system" is the continual insistence upon the use of the subsurface packer.
On such soils the packing tendency of the subsurface packer may help prevent loss of soil water, and may also assist in furnishing a more uniform medium through which plant roots may force their way.
Subsurface packing The subsurface packer invented by Campbell is [shown in Figure 83--not shown--ed.
Disk the land immediately after harvest; follow as soon as possible with the plow; follow the plow with the subsurface packer; and follow the packer with the smoothing harrow.
These methods, with the exception of the subsurface packing, are sound and in harmony with the experience of the great dry-farm sections and with the principles that are being developed by scientific investigation.
For this purpose the first subsurface packer was invented in 1885.
Much regret is often expressed that asphalt pavements should be so frequently opened for the purpose of laying or obtaining access to subsurface pipes and conduits, and thereby mutilated.
Every system of conductors that dispenses with the overhead wire is called by the layman an underground trolley, but, properly speaking, these systems may be divided into surface and subsurface conductors.
Throughout its course it disappears, flows underground, and again appears; and, except in flood time, it has a subsurface flow for a distance of 16 km.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "subsurface" in a variety of sentences. We hope that you will now be able to make sentences using this word.
