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Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回阀点在于不可逆止回,配置简化维修的复位弹簧。

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A strainer is recommended to be installed ahead of the backflow preventer to prevent the fouling of the check assembly and resulting spillage from the valve during repressurization.

建议在回流阀前安装一个过滤器,止由于止回阀总成受到导致这种阀门在再增压期间产生泄漏或溢出。

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CNN 10 学生英语 2022年9月合集

Critical pre-launch tests have been hampered by issues with propellant loading and a malfunctioning helium check valve.

关键的发射前测试因推进剂装载问题和氦止回阀故障而

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大成人 家政篇

You might have to rig a shoestring, coat hanger, or stick to keep the float up or the flapper down to free up your hands.

你可能需要临时用鞋带、衣架或木棍来固定浮球或止回阀,以便腾出双手。

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