The small single-point switch is left open as shown when sending a message, but when receiving it should be closed in order that the electric waves from the antenna may pass through the coherer.
The switch should always be left open, as it uses up the current very rapidly.
The covers should be left open occasionally to prevent mold and to remove any bad air that may have collected from the contents.
The last bag should be left open, in order to allow the vapour to escape into the open air.
The middle of the vaulted top is left open in the building, and is covered over with the grate-bars of the furnace.
The bung-holes should be left open, and the casks should not be full, in order that the air may act over an extensive surface of the liquor.
If a shallow pan of extensive surface be heated by a subjacent fire, by a liquid medium, or a series of steam pipes upon its bottom; it will give off less vapour in the same time when it is left open, than when partially covered.
The bunghole should be left open, and the vinegar will soon be fit for use.
The lowest is to be left open as a passage for the bees, and the others are to be closed by a piece of wood fitted to the aperture.
Having taken out the contents of the box which has been separated, it is to be placed again on the stand, under the lower box, and its door only is to be left open.
In a month's time it begins to be sharp, but must be suffered to stand a little longer, and then put into a cask, of which the bunghole is to be left open.
Or the nut may be in one piece with the joint C left open, the screws B crossing the nut upon the screw by pressure.
This enables the gap in the lower shears to be left open to receive work of large diameter, and has the advantage that the gap need be opened no more than is necessary to receive the required length of work.
Suppose, however, that the joint of the brass is left open as in Fig.
Of these flaps the Y-shaped one is the most practicable, as it is suitable whether the posterior wound is closed or left open.
The after-treatment is the same as that already described for the complete mastoid operation in which the posterior wound has been left open.
The wound should be left open for a few days until the acute inflammation of the soft tissues has subsided, after which the upper and lower angles of the wound can be partially closed by sutures.
Panse’s flap is only of service if the posterior wound is left open and if there is not sufficient tissue left to make a posterior flap owing to previous destruction of the posterior wall of the auditory canal.
One side--that to leeward of the prevailing wind--is left open, to allow for an entrance and the escape of smoke.
A small aperture is left openat the bottom, through which those seeking shelter may just squeeze their bodies, and this being barricaded inside, the defence is complete.
A second piece of matting closes up one end; and the other, left open, serves for the entrance.
After particles have stopped falling, the outside door may be left open to provide better ventilation.
Doors and windows on the sides of your house away from, the tornado may be left open to help reduce damage to the building, but stay away from them to avoid flying debris.
A few inches should be left open at the top for air.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "left open" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.