full-opening valve
... full-motion 全部活动 full-opening valve 敞开阀 full-packed asembly 满眼组合钻具 ...
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敞开式安全阀 Exposed Type Safety Valve
·2,447,543篇论文数据，部分数据来源于NoteExpress
本系列盲板阀是敞开式阀门。
The valve is open type.
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滑槽式保险安装结构容易，罕用于敞开式插板阀。
Chute-type structure of the insurance is easy to install, rarely used in open-type valve plates.
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