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vibrating hammer
 vibrating hammer
busin. 震动锤
| compaction test
 compaction test
hydroel.st. 击实试验; 压实试验
soil. 坚实试验

to phrases
vibrating hammer
busin. 震动锤
tech. 振动
vibrating hammer: 8 phrases in 3 subjects
Bridge construction2
Engineering geology1
Technology5