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由于一门学科的发展状况和该学科的资料数目有一定的相关性,因而对该学科的资料数目进行统计分析,就可以作出一些概率的判断。 为了对近年来断裂学科的发展有一个概率的估计,我们对《物理文摘》、《工程索引》及《国际航空文摘》三种文摘杂志所报导的与断裂学科有关的主题词下的资料数字进行了统计,得到一些数字,如表1～5。
Due to the fact that the development status of a subject is related to the number of the subject’s information, statistical analysis of the number of the subject’s information can make some probabilities of judgment. In order to have a probability estimate of the development of fracture sciences in recent years, we have conducted data statistics under the keywords related to fracture sciences reported in three abstracts of “Physics Abstracts”, “Engineering Indexes” and “International Aviation Abstracts” Statistics, get some numbers, such as Table 1-5.