Objective To assess the value of pulmonary ventilation test in evaluating the prognosis of cardiac surgery patients.

目的研究术前肺通气功能在评价心脏外科手术预后中的价值。

youdao

Studies the mechanical performance such as minimum start-up air speed, reaction time and ventilation performance of the catcher developed by the authors on the simple opening ventilation test-bed.

利用搭建的简易开放式通风实验台，实验研究了所研制的一种具有自动捕风功能的通风装置的最小启动风速、反应时间等机械性能及通风性能。

youdao

To test reliability of the simulated program, ventilation drying tests on maize and rice under certain drying conditions were conducted by using the grain ventilation unit.

为了验证模拟程序的可靠性，在一定干燥条件下利用自制的谷物通风干燥装置对玉米、稻谷做了通风干燥试验。

youdao

To disperse the smoke, the testers boosted ventilation in the cockpit, replacing its air entirely once every minute, according to an FAA report of the test.

WSJ: Dreamliner-Like Batteries Raised Concerns