表指示器应当是平衡式的并有微调，这样零点漂移可以不用调节可动元件来修正。
Gauge Pointers shall be balanced and provided with a micrometer adjustment so that zero shift may be corrected without adjusting the movement.
弹性式压力表是利用弹性元件在被测介质压力作用下，产生弹性形变的原理而制成的。
Elastic pressure meter is made in accordance with the principle that elastic deformation caused by pressure of tested medium.
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