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七十年代初,美国利用与石墨有关的材料,代替实验导弹的金属头罩后,才使导弹成功地达到预计的发射点.阿波罗飞船上面因装有Ⅱ型金属石作为红外窗口,才准确地测定出距月球的距离.最近,英国人在纲体中加入陶瓷纤维,制成一种名叫“乔巴姆”的特种防弹甲板…….无数例子说明,非金属矿产在当代先进科学领域里的作用,并使它从五十年代以来,在工业发达国家其原料产值要比金属矿产原料的产值高出一倍.面对这种形势,我国非金属矿产资源的情况又如何呢?
In the early seventies, the United States made use of graphite-related materials instead of the metal hood of the experimental missile to make the missile successfully reach the expected launch point. The Apollo spacecraft was fitted with Type II metal stone as an infrared window for accurate To determine the distance from the moon recently British people in the program by adding ceramic fibers, made of a special “Qiambam ” special bullet-proof deck .... Countless examples show that non-metallic minerals in the contemporary advanced Science, and make it twice as big as the output value of raw materials of metal minerals in industrialized countries since the 1950s In the face of this situation, what about the situation of non-metallic mineral resources in China? ?