The cause and mechanism of valve failure are analyzed, and the method of tumbling chamfer is studied to improve service life of the valves.

综合分析了阀片的失效原因、机理，并进行了对阀片边缘实施滚磨倒角来提高其疲劳寿命的实验研究。

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The analysis indicates when the flow-ratio of system in high-rise building falls to 50% of the total design flow, the two-way electronic valve on the fan-coil in first floor causes valve failure.

分析表明当某高层建筑空调系统水流量降低为总设计流量的50%时，其底层风机盘管上的电动两通阀动作失灵。

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That included Exxon employees' failure to close an upstream safety valve, which could have significantly reduced the size of the spill after it was first detected.

NPR: APNewsBreak: $1.7M Penalty Proposed In Exxon Spill

She gets verbose when asked about corporate culture at Valve, about how she's never worked at a company where risk and failure are so acceptable -- even encouraged.

ENGADGET: Valve's first hardware beta starting by next year, wearable computing still far off