WTZK type temp, controller is an electrical switch that can make circuit close or open following change of controlled medium temp.

WTZK型温度控制器是可随被控介质温度变化而使电路闭合或断开的电开关。

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The causes for the failure of oscillation in silicon controlled medium - frequency source are analysed and the ways to solve them are proposed in this paper.

分析了可控硅中频电源在运行中发生停振的原因，提出了解决停振的方法。

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It is suitable for controlling temperature of non-corrosive liquids, gases and vapors in various heating systems. When the temperature of the controlled medium rises, the control valve is closed.

适用于非腐蚀性的液体、气体和蒸汽，在各种加热系统中起温度控制的作用，当被控介质温度升高时，控制阀关闭。

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The heart of the German manufacturing economy moreover consists of the so-called mittelstand of medium-sized, family-controlled companies that are for the most part unlisted.

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