clearance中文什么意思

n.
1.清除，扫除，除去；解除。
2.【林业】终伐；(伐去树木后的)林间空地。
3.出[入]港证；放行证；出入港手续(机场指挥塔发出的)起飞(或降落)许可。
+更多解释...4.【机械工程】(公差的)公隙；余隙，间隙；【建筑】净空〔如车辆通过隧道时两边所留空隙〕。
5.【商业】结算，清算；纯益；票据交换(额)。
6.参与机密工作的许可。
短语和例子
a ground clearance(飞机起落轮中心的)离地距离。 for clearance (足球)踢球门球。

• s clearance:    文件的批核
• aircraft clearance ; flight clearance:    准许起飞
• actual clearance:    实际净空

例句与用法

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1. It may lead to hyponatremia because of impairment in free water clearance .
   此症可导致低钠血症，因为它妨碍了游离水的清除。
2. Blasting is a competitive method in connection with clearance work in old residential areas .
   爆破是与老住宅区清除工作有关的一种有竞争力的方法。
3. Measure the clearance of bearing by pressing lead wires
   用压铅法测量轴承间隙。
4. - he has clearance - did you tell him everything
   -他有权限. . . -你告诉他一切了吗
5. We leave as soon as we get clearance and equipment
   我们一得到许可和装备就行动

英文释义

名词

1. permission to proceed; "the plane was given clearance to land"
2. the distance by which one thing clears another; the space between them
3. vertical space available to allow easy passage under something
   同义词：headroom, headway