作业帮non-rising spindle gate valve是什么阀门啊!如题,再追加分数···还有 lever operated butterfly valve
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non-rising spindle gate valve是什么阀门啊!如题,再追加分数···还有 lever operated butterfly valve
non-rising spindle gate valve是什么阀门啊!
如题,再追加分数···
还有 lever operated butterfly valve
non-rising spindle gate valve是什么阀门啊!如题,再追加分数···还有 lever operated butterfly valve
暗杆式闸阀
non-rising spindle ＝ 阀杆不会上升
gate valve ＝ 闸阀
lever operated butterfly valve
用手柄操作的蝶阀
不要追加另外的问题好不好?另有问题可以另外发贴求助,你没有损失,我可多得分,何乐而不为?
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non-rising spindle gate valve是什么阀门啊!如题,再追加分数···还有 lever operated butterfly valve
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