For the actuators with pneumatic diaphragms or air cylinders the matching flame-proof type electric-gas valve positioner shall be provided together with the valve.
执行机构采用气动薄膜或气缸执行机构的，随阀提供配套隔爆型电？气阀门定位器。
There are two types of explosion-proof instruments, safety type and flame-proof type, which constitute intrinsic safety control system and flame-proof control system respectively.
关于防爆有“本安”和“隔爆”类仪表，它们分别构成“本安控制系统”和“隔爆系统”。
A new type of flame retarding mildew-resistant and water-proof tarpaulin for railway use was developed.
一种新型阻燃、防霉和防水的铁路篷布已研制成功。
For the structural problems of flame-proof dry-type transformers, processes are improving timely and new technology is used to solve this problem.
对于隔爆干式变压器的结构问题，通过及时改进工艺、应用新技术进行解决。
For the structural problems of flame-proof dry-type transformers, processes are improving timely and new technology is used to solve this problem.
对于隔爆干式变压器的结构问题，通过及时改进工艺、应用新技术进行解决。
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