在纳米硅的作用下，水在70～90摄氏度的条件下就能分解产生氢气。
When in this nano-state, it is claimed silicon will readily generate hydrogen when contacted with water at temperatures between 70 and 90 degrees Celsius.
文中还提出了影响螺栓连接可靠性的主要因素以及提高屈服点拧紧法可靠度的条件与使用范围。
The main factors effecting on reliability of bolted joints, the conditions of increasing the reliability of tightening method up to the yield point, and the sc...
遗憾的是，一秒钟的标准定义依赖于原子在绝对零度的条件，而实际的时钟需要在室温下运行，室温条件下电子壳层膨胀了。
Unfortunately, the standard definition of a second relies on what the atom does at a temperature of absolute zero. Real clocks need to run at room temperature, where the shell of electrons puffs up.
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