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- Safe work permit procedures, including lockout and tag out procedures, should be followed with a minimum of a double block valve and bleed system between an operating system and the work area. 在正在运转的系统的工作区域之间至少要有一个双隔断阀和排放系统。
- double block valve 双隔断阀
- Two Chinese players erect a double block. 两名中国队员双人拦网。
- A double block that leaves a space between its blockers. 两臂间有空隙的双人拦网。
- The outside blocker not included in the double block. 双人拦网之外的拦网手。
- NIBCO's exclusive Block Valve design greatly extends the life you ordinarily expect from a gate valve. 美国尼伯科特有的关闭阀设计极大地延长了传统闸阀的使用寿命。
- All pressure instruments shall have a primary block valve isolating it from the vessel or pipe. 所有压力仪表应安装一个主截止阀，以便与容器或管道隔离。
- NIBCO's exclusive Block Valve design greatly extends the life you ordinarily expect from a gate valve . 美国尼伯科特有的关闭阀设计极大地延长了传统闸阀的使用寿命。
- If the Rockets are going to get anywhere Yao and T-Mac need to be Superman and Batman. That double block is the perfect symbol for the two superstars. 如果火箭想继续前进的话姚明和麦蒂需要成为超人和蝙蝠侠。那两个盖帽是这两个超级巨星的完美诠释。
- Product notes: We are developing a double block and bleed design seating arrangement for applications which require verifiable positive shut off. 产品说明：我们正在开发双重阻塞和排放结构的阀座排列设计，用于要求能够证明确实关断的应用环境。
- All pressure instruments shall have a vent valve to provide the capability of depressurizing the sensing line after the block valve is closed. 所有压力仪表应配备一个排气阀，以便在截止阀关闭后能够使导压管泄压。
- The O-Seal feature will effectively double block and bleed in most services, provided the line media is free of foreign matter and solids in suspension. 在大多数应用中,O形密封能够有效的双重阻塞和排气,确保管路内的流体介质不受外部物质和滞留固体颗粒的侵扰。
- Test all instrument air headers and piping leads up to the block valve immediately preceding the filter regulator with air at normal operating pressure. 在正常操作压力下用空气测试与过滤校准器(仪)前的隔断阀所有相连的仪表集气管及管道。
- Semi-submersible Ferry-type Landing is built up by docking barge,double block roll off platform and assembled mooring system which installed special upright anchor device. 可潜式滚装码头由趸船、双体滚装平台和设有特种垂直锚装置的组合锚泊系统等组成。
- All flanged process connections, except those for internal displacer level instruments shall have a flanged gate block valve, directly connected to the process connection. 所有法兰工艺接头，不包括内浮子液位计，应有一个法兰闸门型截止阀，直接连接到工艺接头。
- Where piping being tested extends beyond the process unit limit without flanges, it shall be tested to the first block valve or set of flanges outside the unit limits. 如果试压管道超出了工艺装置界区而没有法兰时，则应试压至装置界区外的第一个隔断阀或第一组法兰。
- It is also worth noting that this is exactly why we do not allow cell phones into DPLNG process plant areas that contain LNG or natural gas e.g. the Terminal process area and the Pipeline Off Take &Block valve stations. 值得一提的是，这也正是为什么我们禁止将手机带入我们的液化天然气或天然气等的工艺厂区，接收站工艺区，管线分输站和阀室的原因。
- Block valves on relief valves in service shall be car sealed open (CSO) or locked open (LO). 用于泄放阀的截止阀应为铅封开（CSO）或锁定开（LO）。
- Check that orifice flange shut-off valves or instrument piping process block valves are tightly closed. 检查所有孔板法兰关闭阀或仪表管道工艺切断阀是否关紧？
- Die lips Double block accumu- lation machine 挤出机机头口型
