焊接波纹管是近年来国内外兴起的一种新型元件，它有两突出的优点：变形量大，寿命长。
Welded bellows are a kind of new developed component, which have two prominent advantages: large transmogrification quantity and long duration.
这个体积增量通过毛细管传递到仪表内弹性元件(波纹管)，使之产生一个相对应的位移。
This volume increment is transmitted to the elastic element (bellows) within the gauge to make it generate a corresponding displacement.
型波纹管是一种重要的柔性连接和补偿元件。
C shaped bellows is frequently used as flexible joint and compensator.
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