Modular check construction featuring nonreversible checks with captured springs for simplified servicing.
模块化止回结构特点在逆止回，配置简化维修的复位弹簧。
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.
建议在回流前安装一个过滤器，止由止回受到污染而导致这种门在再增压期间产生泄漏或溢出。
声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
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和氦止回阀故障而受阻。
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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划词翻译
详细解释
结构特点在
逆止回，配置简化维修的复位弹簧。
回流
受到污染而导致这种
和氦
何长大成人 家政篇
临时用鞋带、衣架或木棍来固定浮球或
