air clearance

基本解释

With the development of air freight, the reform of air clearance is necessary.
根據航空貨運業的發展，空運通關改革勢在必行。
The requisition of improving the air clearance accurancy in the large scale synchronous machine erection and changing configure method are presented.
分析了泵站運行中常見的機組功率相差較大的原因，明確提出需要提高大型同步電機空氣間隙安裝精度和改變安裝方法。
The calculation result shows that the influence of different air clearance beneath train body on aerodynamic drag is quite limited, but its effect on the aerodynamic lift is fairly strong.
計算結果表明，車下空氣隙的大小對列車運行的空氣阻力衹有微小的影響，但對氣動陞力的影響較大；

The support troops perform a variety of functions such as mine clearance, equipment servicing, construction,air support, medical services and many others.

Russian officials say they gave the go-ahead to let the plane through despite its improper clearance but the flight crew says Russian air-traffic controllers reportedly turned them back.
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Now, the association's leaders have identified 11 sectors, including electronics, tourism, health care and air travel, in which they hope to remove tariffs, harmonise standards, and expedite customs clearance.
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Given the apparently excessive size of the clearance and the eccentric choice of route, some detect a stink of corruption in the smoky air.
ECONOMIST: A potent mix of heat, haze, alcohol and corruption