... demand attachment最大需量指示器 drill attachment钻床配件 bundling attachment集草车 ...
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step feed drill attachment 分级进给钻削附件
drill unit with fertilizer attachment 带施肥装置的条播机
drill l attachment 钻床配件
combined drill and mill attachment 铣钻联合附件
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This resembled a power drill, with an attachment made of bearings and springs.
FORBES: Global Life
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