以下为句子列表：
英文: 418 This is a gate valve (check valve, butterfly valve, cut-off valve, magnetic valve, remote valve, relief valve, throttle valve, cock).
中文: 这是一个闸阀（止回阀、蝶阀、切断阀、电磁阀、遥控阀、安全阀、节流阀、旋塞）。
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英文: After closing a gate valve with sufficient force to develop shutoff, the stem should be backed off slightly (1/8 to 1/4 turn) to relieve stem load.
中文: 在以足够的力量关闭闸阀后，应该是阀杆稍微回转一点(1/8至1/4转)，以减轻阀杆的负载。
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英文: Being been produced upon advanced design and technology at home and abroad and fitted with advanced manual and electric actuators and accordance with the standard of 《CJ/T3006-1992 Cast Iron Gate Valve for Water-supply and Sewerage》, our valves are strong
中文: 本公司的闸门系列产品符合CJ/T3006-1992《供水排水用铸铁闸门》标准,该产品综合国内外先进的结构和工艺,并采用国内先进的手、电动控制装置,使得闸门具有密封性强、耐磨性好、安装方便、启闭灵活、寿命长等特点。
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英文: Clean or replace gate valve with full port ball valves or resilient wedge shutoff valves.
中文: 1用全流道球阀或弹性楔板关闭阀清洗或更换闸阀。
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英文: FREEZING WEATHER PRECAUTION: Subsequent to testing a piping system, gate valve should be in an open position to allow complete drainage.
中文: 冰冻气候预防措施：在测试管道系统后，闸阀应该处于开启状态，使得完全排泄能够进行。
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