炸裂
6.Even a small bit of mud, snow, excess lubricating oil or grease in the bore can cause dangerously increased pressures, causing the barrel to bulge or even burst on firing, which can cause injury to the shooter and bystanders.
7.P-RAP method is adopted to grow KBr single crystal. CHBr_3 and the mixture of CH_2Br_2 and CCl_4 are chosen as the P-reagent and RAP-reagent for the purification of KBr raw material and KBr melt respectively. Crucible crack caused by adhesion of the melt can be avoided.
8.Due to the inevitable absorption of crystal window, the crystal window will be distorted even burst while the power of high energy laser apparatus is several hundred thousand watt even mega-watt, so the quality of laser beam will be influenced and the laser apparatus will not work properly.
9.Window of inferior aluminium alloy door, choose aluminous profile series and norms blindly, machine manufacture in a rough way, in order to curium cut replaces mill treatment, do not undertake installing by the requirement, sealed performance is poor, switch does not freely, not only rain of air leak leakage and occurrence glass blast crack a phenomenon, and encounter blast and outside force, blow push-pull part or glass easily fall or touch fall, destroy content to injure a person.

