一个不懂得与朋友保持适当距离的朋友是不值得珍惜的。
电烙铁应与电容器塑胶套管保持适当距离，以防止过热造成塑胶套管破裂。
Soldering iron should be kept in a suitable distance from vinyl sleeve of capacitor in order to avoid sleeve crack.
电烙铁应与电解电容器塑料套管保持适当距离，以防止过热造成塑料套管破裂。
Soldering irons should be kept away from the vinyl sleeve of capacitor to avoid excessive heat or damage to the sleeve.
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