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Based on the method of minimum deviation angle, man can obtain the accuracy of measuring refractive index of glass at 3×10-6 with fine apparatus for measuring angle, but the classical princip1e formula quoted by these literatures have principle formula error about 4 ×10 - 4 order which lead to an erroneous measure result.

在这些测量折射率的方法中，最重要的是最小偏向用法和V棱镜法。推导最小偏向角法和V棱镜法的所有文献都沿用经典的原理公式，而这些经典的原理公式没有考虑到空气实际折射率对被测试样折射率的影响。

It is found that smaller deviation of setting angle will lead to bigger combustion problems sometimes.

0引言在电力生产中，经常遇到因喷燃器安装角度偏差带来的燃烧问题。

From the angle of the soil enzymes,lead to mild zinc and copper pollution improvement, and the copper pollution repair effect is not significant.

从土壤酶角度看，铅对轻度锌和铜污染有改良作用，而对铜污染修复效果不显著。

The stress and radial displacement will increase with the increment of half cone angle and lead.

螺旋输送器的最大应力强度和最大径向位移均与转速近似地成二次方关系；减小叶片壁厚，沉渣对螺旋叶片作用的正压力所引起的叶片的最大轴向位移增长较快；正常工况下，螺旋输送器的最大应力强度和最大径向位移都随着半锥角和导程的增加而增大。

The control of the lead angle of the motor is studied. The power MOSFETs are used as a power amplifier which adopts a half-bridge circuit.

本文设计了变磁阻电机三相绕组的电流闭环控制系统，并研究了超前角控制问题。

By changing the value of the blade thickness, cone angle, lead and height of fillet weld, influences of these parameters on the strength and displacement of the screw conveyor are investigated which form the base for optimization of the conveyor structure.

论文还通过调整螺旋输送器的叶片壁厚、半锥角、导程和焊角高等几何结构参数，研究了各参数的变化对螺旋输送器强度和变形的影响，为结构优化设计奠定了基础。

The gyro gunsight at last solved the most difficult problem faced by pilots and air gunners, that of finding the correct angle of deflection or 'lead' needed to hit the target when it was moving across the line of fire.

陀螺瞄准镜最终解决了飞行员和空中射手面对的最困难的问题，那就是在目标横越发射线的时候，找到正确的命中目标所需要的前置角度或者提前量。

PROJECT_ON_DRIE_SURFACE—Preseres the lead angle of the tool axis relatie to the surface normal for each explicit axis defined at locations on the surface.

投影在驱动曲面上–保留刀具轴相对于在曲面的多个位置处定义的每个显式轴的曲面法向的导引角。

The fan angle of lower leg of lead leg at last run up stride greatly influences the falling of CG and the horizontal velocity before coming to board and the vertical veloxity of take of .

，其小腿支撑扇角对踏板前的身体重心下降，水平速度以及离板瞬间的重心垂直速度有重要影响。

The max stress and the max radial displacement of conveyor is also proportional to the square of rotational speed. With the decrease of the blade thickness, both the stress and axial displacement of conveyor increase rapidly. The stress and radial displacement will increase with the increment of half cone angle and lead.

螺旋输送器的最大应力强度和最大径向位移均与转速近似地成二次方关系；减小叶片壁厚，沉渣对螺旋叶片作用的正压力所引起的叶片的最大轴向位移增长较快；正常工况下，螺旋输送器的最大应力强度和最大径向位移都随着半锥角和导程的增加而增大。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。