Both of these statements are based on the tacit assumption that the applied stress does not change during the crack growth process . 这些结论都建立在理想的假设上，即实用应用力在裂纹扩展过程中不变。
Subjective assessment of heart size is the most practical method and is the one recommended for general use, except for the beginners . 主观判断心脏大小是最实用的方法，除初学者外可以作为一般的应用。
The motivations for the search of new knowledge and the application of already acquired knowledge for practical purposes are entirely different . 探索新知识的动力与把既得的知识应用于实用目的这两件事完全不同。
Here we discuss only two special types of wave propagation problems that have a direct bearing on both theoretical and applied seismology . 在这里我们只讨论和理论地震学及实用地震学都有直接关系的波动传播问题的两个特例。
The print was indeed large, but since the society that arranged the publication insisted on the combination of cheapness with utility, the paper was abominable . 印刷字体的确很大，可是由于安排这本书出版的团体坚决要求把它印制得便宜实用，所以纸张糟糕透顶。
The use of standard color solutions or of most proprietary devices is impractical because of possibilities of breakage, spillage, or lack of a suitable power source . 因为标准色度溶液或大部分专利仪器存在破裂、泄漏或缺乏合适的可得能源，所以它们没有实用价值。
Although we are always encouraged when our discoveries have unexpected applications, as in medicine, we do not do our research because it may have applications . 虽然每当我们的发现收到意想不到的实用（如在医学方面）的效果时我们感到鼓舞，但我们并不是为了猎取实用效果而从事研究。
Command line , and some sample command lines , see 实用工具中的选项的信息，请参阅
