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DL-7型宽量程BA计规管的测量范围是1～6.7×10~(-8)帕。本文介绍此规管在拓宽BA计上限方面所采取的措施及BA计在高压强时的特性。
The measurement range of DL-7 wide-range BA gauge gauge is 1 ~ 6.7 × 10 ~ (-8) Pa. This article describes the measures taken by the regulation to broaden the upper limit of the BA meter and the characteristics of the BA meter at high pressure.