查询词典 prism level

The test with the gravity anomalies and gravity gradiometry data of the synthesized Y-type dyke and multiple rectangular prism models shows that the method can image the spatial extension states and the distribution of equivalent excess masses of anomalous geological bodies with high resolution both longitudinally and transversely.

通过合成Y型岩脉模型和合成多个直立长方体组合模型的重力异常和重力梯度数据试验分析，验证了本文三维相关成像方法可显示出异常地质体的空间赋存状态和等效剩余质量分布，具有良好的纵向和横向分辨率。

It also makes analysis on the connection of Newton's prism experiments, and describes how Newton proved these propositions by taking advantage of these experiments in the article. As well the author makes analysis and generalization on the make of Newton's reflecting telescope and Newton's

首先，在对《光学》认真研读的基础上，首次对其光的颜色理论部分的大量棱镜实验之间的关系进行了分析，从而说明牛顿是如何利用这些实验证明这些命题的；其次，笔者在前人研究的基础上，对反射望远镜的制造和牛顿环理论进行分析和总结，力求描述得清楚全面；最后，鉴于国内外对牛顿光本性认识的研究存在分歧的情况，笔者对惠更斯和牛顿的相关著作进行了详细考察，对他们的光本性观点进行了系统的研究和比较，从而指出那种只因牛顿

Newton also built the first practical reflecting telescope and developed a theory of colour based on the observation that a prism decomposes white light into the many colours that form the visible spectrum.

在力学上，牛顿阐明了动量和角动量守恒的原理。在光学上，他发明了反射式望远镜，并基于对三棱镜将白光发散成可见光谱的观察，发展出了颜色理论。

And how can you make the prism refract in the ... er ... opposite direction?

那你怎么样能让棱镜朝着……嗯……相反的方向折射呢？

The readings of the refractometer should be calibrated before use with a prism of against water.

测定前，折光计读数应用校正用棱镜或水进行校正，水的折光率20℃时为1.3330，25℃时为1.3325，40℃时为1.3305。

Methods Two mathematical models were created for preoperative planning of the ablation in spherical tumors. The models were based on the overlapping sphere principle and were deduced and calculated by the regular prism way and regular polyhedron way.

将肿瘤模式化为类球体，根据球体覆盖原理建立数学模型，应用正棱柱法及正多面体法进行推导计算，获得治疗范围与射频针伞径、布针次数的关系式。

A map was achieved in detail for the optimal placement of ablation electrode. According to assumption of complete destruction of tumor and its 0.5 cm margin by 5.0 cm ablation device with this method, calculating results were obtained as follows: a tumor of 4.1 ～ 4.3 cm in diameter required 4 ablation at least by the regular tetrahedron way, a tumor of 4.4 ～ 5.6 cm in diameter required 5～8 ablation at least by the regular prism way, a tumor of 5.7 ～ 6.0 cm required 12 ablation at least by the three layers overlapping way.

根据RFA治疗原则消融范围须超越肿瘤周边 0 。5cm以上；按照覆盖类球体肿瘤的计算结果，采用伞径 5 。0cm的射频针，治疗 4.1～ 4.3cm的肿瘤须用正四面体法至少布针 4个点，治疗 4.4～5 。6cm的肿瘤用正棱柱法至少布针 5～ 8个点，治疗 5 。7～ 6 。0cm的肿瘤用三层重叠法至少布针 12个点，方能达到较彻底覆盖灭活肿瘤的效果。

This can be fulfilled by using a rhomb prism which has a nearly constant refractive index in the working wavelength range.

这可以通过一个在工作波长范围内折射率变化较小的菱型棱镜来实现。

A calculation method to calculate the surface shape error of rhombic prism according to parallelism demand of emergent beam is introduced.

介绍一种根据出射光平行度要求计算斜方棱镜面形误差的方法。

Quartz is commonly found as a six-sided, prism-shaped crystal topped by pyramid-like form, while calcite usually shows a crystal form of rhombohedron.

石英通常呈六方柱，顶上带有双锥的晶形，而方解石却常以菱形六面体形式出现。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。