rock breaker 中文意思是什麼
rock breaker
解釋
碎石船-
Technology comparison between tri - arm rock drilling jumbo and hand rock breaker used in drilling and blasting construction of luofeng tunnel
蘿峰隧道三臂鑿巖臺車與手持式鑿巖機鉆爆法掘進施工技術比較
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