英文缩写大全 > US: UNITED STATES ... PCC 港口拥挤附加费 BA 吸气[排气]装置，通气[供氧]设备,氧气呼吸器 B-NT 宽带网络终端 ...
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吸气装置，使纸盒牢固吸在模具上。
The suction device makes the paper box stick to the mould firmly.
其主要特点是通过调控装置可使吸气时供氧，呼气时暂停供氧，故使氧的利用率高达98%以上。
Its character is that through the adjustable valve controlled by inspiration and expiration, it offers and halts oxygen supply. The utilization rate of oxygen is over 98%.
采用锆泵作为吸气泵，设计出静态保真空模拟实验装置。
Adopting zircon pump as inspiration pump, a static state simulation equipment was designed for vacuum holding.
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