air-in

基本解释

The technique can image variations in what is known as the refractive index of air - in essence, the speed of light in a given medium.
这项技术能够使空气折射率图形化-本质上就是特定介质下的光速。
According to the emission test results, the emissions from motorcycles can be reduced effectively after fitted with the secondary air-in devices.
通过工况法排放测试证明，加装二次进气装置可以有效降低摩托车排放。
In order to reduce the induction noise, an investigation was carried out towards the air-in filter acoustic performance based on experiments and boundary element calculation.
为了解决该车进气噪声的问题从而达到整车降噪的目的，应用实验与边界元法计算两种手段，对该车空滤器的频率响应特性进行了研究。

The group's recent "State of the Air" report said Pittsburgh has the worst short-term fine particle pollution in the country.
And it's the windows in the firmament that are opened--those waters are allowed to rush in and dissolve that air bubble.
而在天空上有个口,水可以从中涌入，溶解这些气泡。
耶鲁公开课 - 旧约导论课程节选
But it can be acquired in the air, from patients that are from- from other individuals that are infected.
天花会通过空气传播,通过病人和其他感染者呼出的空气传播
耶鲁公开课 - 生物医学工程探索课程节选

The Seawolf submarine, the C-17 transport aircraft, several different air-to-ground and air-to-air missiles are in the cross-hairs.
CENTERFORSECURITYPOLICY: Center for Security Policy