CHEN X H. Structural lightweight design and topology optimization technology introduction [J]. China High-Tech Enterprises, 2013, (19) : 29-30.

[6]陈新华。结构轻量化设计与拓扑优化技术简介[J]。中国高新技术企业，2013，(19)：29 - 30。

youdao

For example, certain letters or words are more likely to occur together-if an unknown keystroke follows a "t", it is much more likely to be an "h" than an "x".

例如，一些字母或单词更容易同时出现——如果一次未知的键击跟随在“t”之后，那么它是“h”的可能性就比是“x”大很多。

youdao

Problem 2B is asking you to find the point at which h equals 2200, x=0 partial h over partial x equals zero 0 and partial h over partial y is less than zero.

题2B要求找到一点，在这点处，h等于，且∂h/∂,以及∂h/∂y小于。

youdao

X This is H. We've got one "x" here.

这是H，我们得到了一个。

麻省理工公开课 - 固态化学导论课程节选

This is h nu. X-rays coming in.

这是hv，X光出现了。

麻省理工公开课 - 固态化学导论课程节选

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