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单词 blue top
释义

blue top


blue top

A stake which is driven into the ground, the top of which indicates the grade level.

blue top


blue top

In excavating and in road construction, the practice of marking the desired final grade with a stake topped by blue fibers.The heavy equipment operator continues to move dirt until only the blue tops show above the ground.
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更新时间:2025/2/1 4:42:24