介绍工艺装置管廊及其管道布置的设计要求、设计程序和注意事项。
Procedure and other requirements of pipe rack layout and its piping design in refineries.
根据研制船用新型计程仪和传感器等设备的需求，设计了双闭环全数字控制的旋转装置。
According to the requirements of developing new types of Marine apparatus, such as the log and the transducer, a double-ringed and all digital controlled rotary apparatus is designed.
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