Cold calling skills are very useful in many parts of business life.

无约电话的技巧在商业生活中的很多方面都很有用。

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This instrument is an electromechanical product, the programmable logic controller (PLC) is used for the control, and sensors are used for measuring the useful life of the parts detected.

该仪器为机电一体化产品，采用可编程序控制器控制，利用传感器判别被检部件是否失效及寿命长短。

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The degree of parts and animal spirits necessary to constitute that character, if properly applied, might have made him useful in many parts of life;

那构成他性格的必不可少的才华和勇敢精神，若是运用得恰到好处，或许会使他在一生的许多方面成就为有用人才；

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