单词:valve flap
valve flap的用法和样例:
例句
- All valve seats and seat discs shall be replaceable.所有阀门阀座和阀座阀瓣应该是可更换的。
- Grease Injector at Seat Ring and Disc of Globe Valve.截止阀的阀座环和阀瓣上的润滑油注入器。
单词:valve flap 相关文章
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