A piece of fine wood, one eye also have no, but why can nail a nail in it? It is hard to squeeze into by pressure, hard drilling.
一块好好的木板，上面一个眼也没有，但钉子为什么能钉进去呢？这就是靠压力硬挤进去的，硬钻进去的。
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Interpreted cases showed the goal of fine structural interpretation can be achieved only by fully using abundant drilling information and making it maximum combination with seismic data.
Two key factors for drilling high quality holes of carbon fibre reinforced plastics, which are to keep the fine sharpness of the cutting lip of the drill and to use high drilling speed are discussed.