open to open disc
开启到开启阀瓣
以上为机器翻译结果,长、整句建议使用 人工翻译 。
Also known as butterfly flap valve imports, is to open and close with a round disc with the stem pieces and turn to open, close and adjust the fluid channel of a valve.
进口蝶阀又叫翻板阀,是用圆形蝶板作启闭件并随阀杆转动来开启、关闭和调节流体通道的一种阀门。
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模块上移
模块下移
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