Includes Low Head, Button Head, and Flat Head Screws, as well as special Socket Cap Screws such as Vented, Drilled Head, Self-Locking, and more.

包括低压头，半圆头及平头螺丝以及特殊内六角圆柱头螺钉如排空，钻孔头，自锁，等等。

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Also known as Hex Head Screws or Hex Head Bolts. Includes Standard, Drilled Head, Left Hand Threaded, Self-Sealing, and Military Specification Cap Screws.

也称为六角头螺丝或六角头螺栓。包括标准，钻孔头，左旋螺，自封式，军用规格螺栓。

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Even if you don't know the specific details, the word itself has by now been drilled relentlessly into your head.

即使你不知道具体的细节，这个词还是一个劲儿地往你脑袋里钻。

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Aside from having it drilled into my head by my accountant (I actually pay my taxes), I have sustained two large audits by the IRS (I did well in both of them) where the rules were very clearly explained.

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And to top it all off, Modern Portfolio Theory, which is drilled into the head of every finance major and, more to the point, every Certified Financial Analyst exam taker, tells them that finance has no discernible causal relationship with economics.

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He told me, for example, that his father drilled it into his head to save his money and not fool around with women.

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