The coolant has been examined for signs of combustion gases and checks have also been made of the cooling system for air locks or blockages.

已经对冷却剂进行测试，没有燃烧气体的迹象。检查冷却系统时，也没发现气封和阻塞的情况。

youdao

I depart as air, I shake my white locks at the runaway sun.

VOA: special.2009.04.12

In addition to the aforementioned traction-control system, standard features include ABS brakes, electronic brake assistance, child safety locks and driver, passenger and side-head air bags.

FORBES: Overview

They regularly drop in on Mr Gold, who quizzes them closely, his wild greying locks and well-stuffed shirt pocket giving him the air of a rumpled physics professor expounding an exotic retail calculus.

ECONOMIST: Face value

Not only did our compact car end up having power windows and locks, but it maneuvered easily with its zippy engine, and the air conditioner had no problems handling the Houston heat.

FORBES: The Pain of the Public Upgrade