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Jack Timber

小椽

1、[矿业]短撑木

... 短壁截煤机 shortwall coal cutter 短撑木 jack timber 短导火线引爆 short fuse ...

2、顶木

...jack table ==> 可调起重机架jack timber ==> 顶木,短撑木jack tree ==> 菠萝蚕 ...

3、短撑木

...timber slide 木滑道jack timber 短撑木square timber 方木 ...

jack engine timber短木

timber jack伐木工;美国〕伐木人

timber jack chain木材拖索

土木建筑工程

地球科学

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