soil nail
... soil mechanics 土壤力学 soil nail 泥钉；土钉 soil pipe 污水管；便溺污水管；粪管 ...
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水泥钉 [建] cement nail ; masonry nail ; Concrete Nails
水泥钉枪 cement nail gun
水泥钢钉 Concrete Nails ; concrete steel nails
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只要有一块橡皮泥、一枚宽头钉和一枚窄头钉，你很容易就能看到这一原理是如何运作的。
You can easily see how this works with a piece of modeling clay, a nail with a wide head, and a nail with a small head.
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