1) kohn anomaly
科洞常
3) ordinary leakage
通常漏洞
4) the permanent subjects
常科
1.
As a subset of subjects in Tang Dynasty imperial examination system,the appearance of the Boy\'s Imperial Examination was the result of the implementation of Confucian education put forward by the Government of Tang Dynasty,which belonged to the part of the permanent subjects.
它自唐朝设置以来经历了一个由创立、发展到完善的过程,并且以宋朝为临界点,唐五代的童子科属于常科,之后的童子科则成为一种临时设置的考试科目。
5) unsteady wind tunnel
非定常风洞
1.
The instantaneous vortex structure of the leading-edge vortices on a delta wing in unsteady free stream is investigated via particle image velocimetry in unsteady wind tunnel of NUAA.
在南航非定常风洞中,运用PIV测量技术,研究了非定常自由来流下三角翼前缘涡瞬时涡结构的变化。
2.
A pitching test set-up, used in the unsteady wind tunnel at Nanjing University of Aeronautics & Astronautics, is developed to study the effect of rapid changes on both the free stream velocity and the angle of attack.
在南京航空航天大学已建成的国内首座非定常风洞内,研制了一套单自由度俯仰振荡实验装置,设计开发了一套对模型姿态和来流风速进行联合控制的软件。
3.
In this paper, the effects of unsteady free stream on aerodynamics of an aircraft model are studied in the unsteady wind tunnel of NUAA.
在国内首座非定常风洞中,研究了不同幅值、不同频率脉动的非定常自由来流对飞机模型气动特性的影响。
6) Lissatrypidae
柔无洞贝科
补充资料：1965年在贵州贵阳市南发现的巨型溶洞
1965年在贵州贵阳市南发现的巨型溶洞
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条