在圆柱形的瓷管上固定了两个引出端子，陶瓷管表面上缠绕了扁带波浪形状的合金电阻丝，并在其表面涂覆一层具有阻燃，耐高温特性的涂层。
Two terminal extensions are fixd on both ends of a ceramic tube on whose surface winds wave-shapcd alloy resistance wire and a high temperature-resistant and fireproof coating are applied.
复位引出端子：与复位键一样，短接此端子可使显示回到初始值。
Rest com: As the rest key , shorting it the displaying value will equal to the initial value .
二次绕组引出线端子的标志a、x，均在浇注体上清晰注成。
The secondary outlet signs a, x. They are clearly indicated on the casting body.
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