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在钢瓶已经连接到过程后,慢慢地仔细地开启钢瓶阀门。
Open cylinder valves slowly and carefully after the cylinder has been connected to the process.
youdao
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在钢瓶已经连接到过程后,慢慢地仔细地开启钢瓶阀门。
Open cylinder valves slowly and carefully after the cylinder has been connected to the process.
youdao