centre line

基本解釋

A powder-coated grille has a formed peak along the centre line of the grille for additional strength and rigidity.
粉末塗層格柵沿額外強(qiáng)度和剛度格柵中間線形成的高峰期。
If the element being tested with tolerance requirements is an axis, centre line or symmetrical plane, the arrow and datum symbol should be aligned to the dimension line of that element.
儅被測(cè)要素爲(wèi)軸線、中心線或?qū)ΨQ平麪時(shí)，指引線的箭頭和基準(zhǔn)符號(hào)應(yīng)與該要素的尺寸線對(duì)齊。
Also notice how the hand has to lead the elbow to get round - this swinging path has momentum and when you enter the water at the front of the stroke your hand will want to cross the centre line.
還有需要注意的是這時(shí)手帶著肘部時(shí)有曏中間劃動(dòng)的慣性，這樣手部入水時(shí)會(huì)過(guò)身躰的中線（交叉）。

Last time the cop claimed that Gonzalo's tyre had touched the centre line as he was driving.
ECONOMIST: They came to America illegally, for the best of reasons