... 带压开孔 hot-tapping 波纹管调长器 bellows unit 放散燃烧时应有专人现场监护，严格控制火势；监护人员与放散火炬的水平距离宜大于25m。 ...
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bellows-operated pressure sensing unit [自] 膜盒控制的压力传感装置
Examples of technical improvement are listed. Pipeline flange leakage of compressor unit can be effectively solved by bellows technology is described in detail.
列举了工厂技术改造实例，详细说明了用波纹管技术可有效解决压缩机组管路法兰泄漏问题。
The main acting unit of bellows trap is metal bellows, which is filled with a type of liquid with gasification temperature lower than water's saturation temperature.
美国进口膜盒式蒸汽疏水阀的主要动作元件是金属膜盒，内充一种气化温度比水的饱和温度低的液体。
The BESSA IIIis a high portable, folding bellows camera that allows extremely high-quality images to be taken using a high-performance lens unit.
该BESSA三是高便携式，折叠伸缩镜头，让极高质量的图像将要采取使用一个高性能的镜头组。
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