It is the first time to research into the identification problem of major hazard source concerning widespread mined-out area instability systematacially.

首次对大面积采空区失稳的重大危险源辨识问题进行了系统研究。

youdao

Evaluations are conducted on the possibility of major hazard source accidents, severity, inherent risk and risk grade and the practical calculations are also conducted.

对重大危险源事故易发性、事故严重度、固有危险性及危险等级进行了评价，并进行了实例计算。

youdao

Radon can also be found in drinking water, the concentration depending on the water source, and this can sometimes present a hazard.

饮用水中也可找到氡，浓度取决于水源，有时可造成危害。

youdao

The shelters are a hazard to the bus users and a source of confusion to others who reasonably expect that bright, new, well-maintained bus shelters on a main city road indicate the existence of a bus service.

ECONOMIST: Letters

"If the products represent a fire hazard, they will not get into the US market, " a source who asked not to be identified told IDG News Service Tuesday.

CNN: EU proposals aim to reduce electronic waste