hole-basis system of fits 基孔制配合 ; 基孔制
Study of physical effects in the vicinity of a black hole as a basis for understanding general relativity, astrophysics, and elements of cosmology.
透过研究黑洞对附近环境的物理影响，为同学提供了解广义相对论、天体物理学和基础宇宙学的基础。
The conclusions drawn provide some basis for using and popularizing the new type of man-hole strengthening structure.
所得结论为这种新式人孔加强结构的使用及推广提供了一定依据。
On the basis of investigating the properties of hole EDM drilling of structural ceramics, the mechanisms of EDM-machining in structural ceramics processing were studied.
在深入研究常用结构陶瓷材料电火花小孔加工工艺规律的基础上，分析总结了结构陶瓷材料的电火花加工蚀除机理。
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