生产性试验表明，该类型钻头对于钻进硬而破碎地层、软硬夹层以及卵砾石地层均具有很好的使用效果。
Production experiment indicates that this kind of drill bit has ideal effect in the middle-hard broken formation and the soft-hard interlayer as well as in the gravel formation.
可在阳光或灯光照射下固化，可用于汽车风挡用夹层安全玻璃、夹层防弹玻璃的生产。
The adhesive can be used in the production of sandwich safety glass in the cars and sandwich bulletproof glass.
主要阐述了一步法生产光致变色夹层玻璃的方法及过程，介绍了生产中应注意的事项及生产设备。
This paper described the method and process of photochromic laminated glass production with single step, introduced some points for attention in the process and facilities for production.
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