differential-acting pile-hammer的意思|示意
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differential-acting打桩机
differential-acting pile-hammer的网络常见释义
复动打桩机 ... 浮动打桩机 floating pile-driver; floatingpile-driver 浮式打桩机 floating pile driver 复动打桩机 differential-acting pile-hammer ...
differential-acting pile-hammer相关短语
1、 Differential acting pile-hammer 差动桩锤
2、 differential-acting pile hammer 差动打桩锤