查询词典 parallel angle

For a carpenter and a geometer investigate the right angle in different ways; the former does so in so far as the right angle is useful for his work, while the latter inquires what it is or what sort of thing it is; for he is a spectator of the truth.

木匠和几何学家以不同的方式研究直角，前者为了实用，后者追问事物之所是，因为他是真理的追求者。

Glancing angle deposition technique was used to deposit ZnS birefringent sculptured thin film by electron beam evaporation, and the oblique angle varied from 60° to 85°.

使用倾斜角沉积的电子束蒸发技术，制备了倾斜角度在60°～85°之间的ZnS双折射雕塑薄膜。

Meanwhile, it makes it difficult to apply angle conversion system to practical goniometry curcuit. The paper makes improvement on the fast following-up conversion and proposes a high-precision dynamic goniometer system and a nonlinear high-speed following-up conversion mode based on inductosyn. It analyses the causes contributing to the error and deduces the expression bf the basic goniometry errors caused by output signal inaccuracy, and also puts forward the bounds on error of axis-to-angle converting.

对快速跟踪型轴角转换方法进行了改进，提出了一种基于感应同步器的高精度动态侧角系统及非线性快速跟踪型转换方式，分析了产生轴角转换误差的主要原因，推导出由输出信号误差引起的基本测角误差表达式，并提出了轴角转换的误差界。

It is a new topic that rule of ground movement in deep dip angle coal seam mining, the coal seam angle is one of important factor of deciding the rule of ground movement , the overlying rock of steep coal seam mining have different homogeneousness in horizontal orientation.

倾斜煤层是指煤层倾角在15°—55°之间的煤层，倾斜煤层开采地表沉陷移动规律是地表沉陷研究领域中的一个重要组成部分，煤系地层倾角是决定上覆岩层的移动和破坏形式及地表移动与变形程度的重要因素之一。

In this paper, the limit load of buried pipe, that is used in Nanjing city nature gas using engineering, was studied by finite element analysis under various groundsill character, pedestal angle and ground pressure, and the risk assessment for this piping was performed. The limit load of buried pipe was measured by experiments. The research contents and results were as follows:(1) With FEA method, the effects of various groundsill character, pedestal angle and ground pressure on the limit load of buried pipe were studied.

本文主要针对南京市城市天然气利用工程的埋地管道，研究其在不同地基性质、支座包角和地面载荷情况下的极限载荷，并进行了试验研究，同时进行了风险评价，主要研究内容与结论如下：(1)通过有限元计算分析，研究了不同地基性质、支座包角和地面载荷对埋地管道极限载荷的影响。

Finished product conical roller whose half angle is greater than 3°is called big cone angle conical roller .

成品圆锥滚子半角大于3°的即为大锥角圆锥滚子。

The invention provides a zoom lens capable of achieving a half angle of view over 38 degrees at the wide-angle end, a magnification ratio 6.5 to 10 or more, and a resolving power corresponding to an imaging element of 5 to 8 million pixels, with a configuration of as few as 10 to 11 pieces of lenses.

本发明提供一种变焦透镜，该变焦透镜能够获得在广角端处大于38度的半视角，6.5至10或更大的放大率，以及对应于5-8百万像素的成像元件的分辨率，具有少至10至11个透镜的结构。

Finally, the transition location of the boundary layers on the cones with different flow parameters, such as the angle of attack, the cone half angle and the Mach number of the coming flow etc.

对于来流小攻角的锥体边界层，传统的e-N方法即使在定性上也不能给出正确结果。

We think, the angle that locates from the history looks, from accurate the angle consideration of the guiding ideology that states a party, from socialism and have sth in mind of phase of socialistic thought development, should put forward and establish " thought of Deng Xiaoping Jiang Zemin theory " this one category, and with the historical new level that after regarding afterwards as Mao Zedong Thought, the Marxism develops in China and party are in new century, in socialistic history the guiding ideology of new level.

我们认为，从历史定位的角度看，从准确表述党的指导思想的角度考虑，从社会主义运动和社会主义思想发展阶段着眼，应提出并确立"邓小平江泽民理论思想"这一范畴，并以之作为继毛泽东思想之后马克思主义在中国发展的历史新阶段和党在新世纪、在社会主义历史新阶段的指导思想。

The main technology parameters that may affect manufacturing the unbroken long metal fiber, including tool normal rake, tool cutting edge inclination angle, chip pulling force, and chip pulling angle, etc, are discussed. The cross section shape of long metal fiber manufactured by microsaw-chippulling combined cutting is hook-like.

通过对自旋转车刀加工金属长纤维的前期试验研究表明，尽量减小切削变形是切削制造金属长纤维的关键：通过对微锯-拉屑复合切削的切削机理研究，得知微锯-拉屑复合切削有很小的切削变形。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。