straight hole

基本解釋

The axis of a tool bar is provided with a hole which is formed by a taper hole and a straight hole;
其結(jié)構(gòu)是在刀桿軸上設(shè)有一孔，該孔由錐孔和直孔構(gòu)成，在錐孔內(nèi)裝有一錐式定位裝置；
ip.com
Essentially a straight hole, the Home hole on the New has been greatly enhanced by the recent work to its bunkers.
基本上是一個直孔，孔上新房已大大加強了其最近的工作掩體。
xie.liangtao.blog.163.com
On the basis of energy method, the possibility of drill stem buckling in inclined straight hole is studied.
本文應(yīng)用虛位移原理，在充分考慮鉆柱所處的特殊環(huán)境的基礎(chǔ)上，考察了斜直井眼中鉆柱屈曲的可能性。

Tiny screws do not necessarily go straight into the correct hole first time after all.
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