To detect such a tiny force, the NIST team confined about 60 ultra-cold beryllium ions in a device called a Penning trap, which USES magnetic and electric fields to imprison charged particles.
为了测出如此微小的力，国家标准和技术学会的团队将大约60个超冷铍离子装在一个叫做“潘宁陷阱”的装置中，该装置是利用磁场和电场禁锢带电粒子的。
Cold pasteurization methods have been developed to kill microorganisms without the application of heat. One such method is the use of pulsed electric fields (PEF) for sterilization of liquid foods.
冷杀菌法进一步在不加热的条件下杀死微生物。这种方法之一就是对液体食品施加脉冲电场。
So he was determined to spend as many nights as necessary in the fields, to save his lambs from dying of cold or hunger.
所以他决定需要多少个夜晚留在田野上他就化多少个夜晚，以免羊羔被冻死、饿死。
So he was determined to spend as many nights as necessary in the fields, to save his lambs from dying of cold or hunger.
所以他决定需要多少个夜晚留在田野上他就化多少个夜晚，以免羊羔被冻死、饿死。
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