In machinery space, the valves, pipes should be（）
The air cylinder bottles in the survival craft should be refilled with（）.
Where is the most air freight shipped in the passenger aircraft?（）
The latent heat of water vapor in air is dependent upon the （）
What is the term for the space that exists above a drop ceiling or below a raised floor and that isused for air return？（）
When the machinery spaces are in the periodic unmanned condition, shall be immediately available and on call to attend the machinery space（）.
Which is true on the subarachnoid space in the vertebral canal（）。
When the dew point of the outside air is lower than or equal to the dew point of the air in the cargo hold，you should（）.
When the order （） is received from the bridge, the main air stop valve in the starting air line should be shut.
The fresh air coming in through the inner air ports, is compressed by（） to a higher pressure.
Air in the fuel lines to the fuel injection nozzles of a diesel will result in （）.
（） is used for sensing the temperature of the room in the air condition system.
When operating the air supply system in a covered lifeboat the（）.
The great source of modification of the air stream is found in the（）cavity.
The loss of （） from an air compressor could lead to an overheated air discharge and possibly an explosion in the pipelines leading to the air reservoir.
In the suction stroke air is induced into the cylinder （）In the compression stroke the air is compressed.
Pollution in the air reduced the _________ near the airport.
The brain perceives the body's orientation in space by（ ）
The outside air's temperature determines the amount of extra heating needed in the ripening room.
Usually，an Air Waybill is non—negotiable，that is，the goods must be sent to the consignee titled in the Air Waybill．（）
When the air in a certain space is squeezed to occupy a smaller space, the air is said to be ______.
The passage implies that dead-air space is most likely to be found______.
Based on the given drawings, the front view does not show the object in space.（）
