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1·In addition to attachments mentioned above, this modularity allowed for quick repairs, barrel length changes, and even caliber changes in the field.

除了以上介绍的，它的模块化可以快速修理，更换枪管长度，甚至更换口径。

2·A stage is arranged between the conical barrel and the column barrel, the motive power action of the machine separating is enhanced, and the length of a rolling barrel is reduced.

在锥筒与圆柱筒之间设置了台阶，加强了机器分选的动力作用，并可减小滚筒的长度。

3·By means of numerical calculation, the rules of J-Integral values varied with the length and depth of the inner surface crack of gun barrel were obtained.

通过数值计算，得出了身管内表面裂纹J积分值随裂纹长度及深度的变化规律。