Because of the limitation of gaps and the mismatch with MOA, there are some accidents as explosion of MOA and wrong actions of parallel gaps, which cause huge economical loss.

• 但是由于间隙本身的局限性，以及它和MOA参数难以合理配合等原因，经常会出现MOA爆炸或间隙误动作等事故，造成极大的经济损失。