“hollow square steel”的概念、定义、翻译、参考文献-科学参考

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单词	hollow square steel
释义	hollow square steel 空心方钢
随便看	spherical intensity spherical involute spherical joint spherical journal spherical lamp spherical lapping spherical laser fusion target spherically dished cover plate spherically seated spherically symmetrical orbitals (分子的) spherically symmetric distribution spherical mean direction spherical meniscus spherical microshell target spherical mirror spherical mirror cavity spherical mirror interferometer spherical mirror objective spherical model spherical nebula spherical normal distribution spherical optics spherical pair spherical particle spherical pendulum