differential hammer的意思|示意

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differential hammer相关短语

1、 differential acting steam hammer 差动汽锤

2、 Differential acting hammer 差动锤

3、 Differential acting pile-hammer 差动桩锤

4、 differential-acting pile hammer 差动打桩锤

5、 Hammer pile differential-acting 差动椿锤

6、 differential-acting pile-hammer 复动打桩机