One of effective measures to weaken short-out flow is to set up an eccentric gas exhaust duct.

指出设置偏心内筒是减小短路流的有效措施之一。

Then, a micro exhaust duct was etched on an electroforming deposit through mask etching technology.

然后利用掩膜腐蚀方法在铸层上腐蚀出微排气通道。

In this paper the design and performance of expanding silencing exhaust duct for the test bed of automotive engines are discussed.

本文论述了车用发动机试验台排气系统中的三节扩张式消声坑的设计和试验结果。

The utility model relates to an exhaust duct that prevents head wind, especially to a movable air discharging door type one-way air exhaust device.

本实用新型涉及一种防逆风排风管，特别是涉及一种活动排风门式的单向 排风装置。

The small eddies created near the exhaust duct cause high frequency noise but downstream of the exhaust jet the larger eddies create low frequency noise.

在排气口附近产生的小涡流引起高频噪声，但是，在排气流后部大的涡流产生低频噪声。