查询词典 critical angle

The experimental curve fits quite well with the theoretical one, which indicates that the method using the critical angle of total reflection of monocrystal to calibrate the grazingexit angle is feasible.

理论计算与实验曲线符合的较好，证明掠出射X射线荧光实验中用单晶的全反射临界角标定掠出射角度的方法是可行的。

The MGPXRC can be used to measure the focal spot size of X-ray source with a larger emitting angle than the critical angle of the total reflection of X-rays.

分别利用多毛细管准直器法和常用的小孔成像法测量了同一微焦斑X射线光源的焦斑直径，测量结果分别为60.8和59.4 μm。

Critical angle of refraction - semi-circular cylindrical mobile light source, the incident angle change the size of refraction angle to change at this time, when the refraction angle = 90 degrees, which is critical at this time angle of incidence angle, the critical angle of water at 40 degrees large about anything mobile source of water in the water screen that is a reflection of light, a phenomenon that total reflection.

光折射的临界角定义：光折射角=90度时，入射角即为临界角，按二方法，将半导体激光光源去掉铁夹，吸附在右下角的铁板上入射光对准中心，即产生折射光线，沿半圆形柱面移动光源，改变入射角的大小，这时折射角也改变，当折射角=90度时，这时入射角即为临界角，水的临界角大的在40度左右，再做移动光源在水中的水屏即出现反射光线，这种现象称全反射。

The results show that there are three discontinuity points at the critical angle of the phase constant, the critical angle of attenuation constant and 90°.

结果表明：入射角在相移常数临界角、衰减常数临界角和90°处，横向偏移曲线存在三个间断点。

Critical reflection: A reflection at the critical angle.

临界反射：入射角为临界角时的反射。

It occurs when the angle of incidence is greater than a certain limiting angle, called the critical angle.

当入射角大于某个称作临界角的极限角时，便发生全内反射。

Human-triggered avalanches have the greatest incidence when the snow's angle of rest 1 is 8 between 35 and 45 degrees; the critical angle, the angle at which the human incidence of avalanches is greatest, is 38 degrees.

当积雪的休止角在35度到45度之间时，人类触发的雪崩具有最在的危险性。人类引起雪崩的临界角是最大的，是38度。

Through some cases analysis,the paper determined whether the incident angle of ray in cross hole seismic exploration being less than critical angle or larger than critical angle is the mark of success or failure.

本文通过对一些实例的分析，确信井间地震勘探的射线入射角小于或大于临界角是成功或失败的标志。

The paper determined whether the incident angle of ray in cross hole seismic exploration being less than critical angle or larger than critical angle is the mark of success or failure.

确信井间地震勘探的射线入射角小于或大于临界角是成功或失败的标志。

Decrease of the clearance made the critical angle become bigger and the effect of disc also increase. Larger impeller disc and larger impeller made the critical angle smaller.

当涡轮与搅拌槽底的间隙越小时临界角越大，而涡轮碟盘对於流场的影响也越明显，当涡轮尺寸与涡轮碟盘尺寸越大时，临界角越小。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了