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文章详细叙述了Ｂ－Ａ型电离规受弱磁场（＜６０高斯）影响的性能，这个Ｂ－Ａ规灵敏度随．（ｌ）磁场的大小，（２）磁场的方向，特别是发射电子方向和磁场方位之间夹角改变而变化。如果要求Ｂ－Ａ规在磁场中工作，必须仔细选择相对于磁场的安装方位才能得到最佳状态。
The article details the performance of the B-A ion gauge affected by a weak magnetic field (<60 Gauss). This B-A gauge follows the sensitivity. (1) the size of the magnetic field, (2) the direction of the magnetic field, in particular the angle between the direction of the emitted electron and the orientation of the magnetic field. If the B-A gauge is required to work in a magnetic field, the orientation relative to the magnetic field must be chosen carefully to achieve the best possible results.