The measuring values of TEE and TTE to inner diameter of ascending aorta were similar(P>0.05).
TEE和TTE对升主动脉内径的测值无显著性差异(P>0.05);
The feasibility of the application of microarc oxidation technique to the treatment of inner surface of steam cylinder was studied by measuring the change of inner diameter, roughness and bench test.
通过研究缸体的内径变化、陶瓷层的粗糙度和台架试验探讨将微弧氧化技术应用于铝制小型汽油机缸体的内表面处理的可行性。
The authors introduce a method for measuring inner and outer diameter of thin wall cylinder with conventional measuring gauge, by means of changing the way of supporting the parts.
作者介绍一种通过改变薄壁气缸套支承形式,再用常规量具来测量薄壁气缸套内外径的方法。
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