1.
a layer of trapped air that serves as insulation.
用于绝缘的密封空气层
2.
sealed pneumatic line-type detector
密封空气管式火灾探测器
3.
sealing regenerative-type air preheater
密封回热式空气预热器
4.
When all air has been removed, the vessel is sealed off.
把全部空气抽走后，将容器密封起来。
5.
RETROFITTING AIR PREHEATER OF BOILER TO ADOPT CONTACTING TYPE FLEXIBLE SEAL
锅炉空气预热器柔性接触式密封改造
6.
pressurizing window
密封封口(电缆), 气密口
7.
Completely sealed, especially against the escape or entry of air.
密闭的，不透气的完全密封的，尤指为了防止空气逸出或进入
8.
Reliability Design of a Contact Type Flexible Seal for Rotary Air Preheaters
回转式空气预热器接触式柔性密封可靠性设计
9.
Design of Seal Structure in Compressor for Air Source Heat Pump Heat Unit
空气源热泵热水机组压缩机密封结构设计
10.
the seal of the air-balancing cylinder adopts multi-stage seal;
气平衡缸密封部位采用多级密封装置 ;
11.
Hermetic: Airtight sealing of an object.
全密封：一种对物体不透气的密封。
12.
The Seal Structure Improvement of Multi-Seal Fuel Gas Separates
多密封燃气隔断闸阀密封结构的改进
13.
Hermetically sealed: Completely sealed, especially against the escape or entry of air - Impervious to outside interference or influence.
赫耳墨斯似的密封：完全密封，尤其是阻止空气逃逸及进入-不受外来干扰或影响。
14.
electron gun vacuum lock
电子枪真空密封装置
15.
oil sealed rotary vacuum pump
油密封式旋转真空泵
16.
closed-air aspirator
空气封闭循环式吸气器
17.
A current of air in an enclosed area.
气流封闭空间中的气流
18.
oiled sealed waterless gasholder
上油密封干式煤气柜