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 new scheme can not only improve the performance of higher channels, but also make circuit modular, standard and series. So, it is of higher practicality.

频谱搬移法不仅可以改善高通道的性能，而且还可以使电路结构模块化、标准化、系列化，因而具有较强的实用性。

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For practically the first time in three years, it is purchasing new surface mount equipment, used to make printed circuit boards.

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It takes around 45 minutes to make a full circuit of the island by motorcycle, and the road is a narrow concrete strip less than two metres across, shared between motorbikes, bicycles, pedestrians, livestock and hoards of giggling children.

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"We need to make sure the Mountain circuit meets international racing regulations, and I start looking at the condition of the roads in January, " continued Mr Counsell.

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