面

In this paper, the plane double enveloping worm has been researched. The motion equations have been built of it. The states of motions and victories and forces of the worm engaging point were been analysis.

本文以平面二次包络环面蜗杆传动为主要研究对象，建立了平面二次包络环面蜗杆传动的运动学分析模型，分析了平面二次包络环面蜗杆传动啮合点的运动状态、啮合点各方向的速度、各方向上啮合力的分力。

On the condition of "many-head" and "small drive ratio",the plane double enveloping hourglass worm can not settle the problem of undercutting and sharpening simultaneously.It has devoted to a new type hourglass worm_sphere double enveloping hourglass worm.

考虑到平面二次包络环面蜗杆传动在多头小传动比条件下根切与齿顶变尖的矛盾很难同时解决且啮合性能较差，介绍了一种新型环面蜗杆传动——球面二次包络环面蜗杆传动。

The present invention discloses one kind of double micro polarizing free stereo imaging device and method. The device includes image plane, slit grating and double micro polaroid. The double micro polaroid sandwiches the slit grating, and the micro polaroid in the image plane side is between the image plane and the slit grating. The double micro polaroid consists of two adjacent lines of micro polarizing units, which are orthogonally arranged.

本发明公开了一种双微偏振式自由立体成像的装置及其方法，该装置包括图像面、狭缝光栅以及双微偏振片，其中双微偏振片是指上下两层微偏振片将狭缝光栅夹在中间，其中处于图像面一侧的微偏振片处于图像面与狭缝光栅之间；所述的微偏振片由相邻两列微偏振单元的透光轴方向相互垂直的微偏振单元周期性分布构成，即所谓"正交排列"；所述的狭缝光栅由等宽度的遮光条纹平行排列组成。

Wavy distribution of soil water along hillslope resulted from the fluctuation of runoff, upslope runoff infiltration, lateral downslope flow, and the difference of infiltration rate and evapotranspiration.

4土壤水分沿坡面呈"波浪形"分布是坡面径流的波动性、上方来水的沿程入渗、侧向沿坡向下流以及坡面各处入渗性能和蒸发蒸腾作用的差异等综合作用的结果。

The flow velocity increased and reached the maximum on the hillslope within a three or four meters' downslope distance, and the flow velocities of each segment almost all decreased with increasing scouring duration in the scouring experiments.

坡面流流速在坡面的发展有一个坡长范围，试验中，在距坡顶3～4 m处，坡面流流速达到最大；坡面、沟坡各断面流速基本上都随着放水冲刷时间的延长而呈下降趋势。

The capacity is large, which can reach above 75% space of the drum. Only 1:1 liquid percentage would meet the technical requirement, the water consumption is small. The liquid in the drum can reach 3/4 level of drum. Therefore the fall of the skins is only 0.7 meter at maximum. The liquid moves as the pattern "8" in the drum, which can reduce skin defects such as grain cracking, loosing and so on.

装皮量大：装载率可达到75%以上，耗水极少，一般液比在1：1以上即可满足工艺要求，机械作用适中，鼓内液面可达鼓径3/4以上，因此皮张最大落差只有0.7m左右，且皮液在鼓体转动时呈∞字型作副运动，可减少裂面、松面、黑漆不掉等质量缺陷。

The following is Ti-He which value is -6480.3 876eV. Ti-He(o2) had the more stable structure of four systems of Ti-He. The variety of volume before and after Geometry optimization proves this result. The population analysis also proves the interaction between helium atom and Ti was electrovalent bond.

利用Dmol3对钒、钛八面体和四面体团簇计算的结果表明，氦原子在金属钒四面体间隙的嵌入能比八面体间隙低，嵌入能为5eV；氦原子在金属钛八面体间隙的嵌入能比四面体间隙低，嵌入能为0.2eV。

In this dissertation, a more comprehensive and further investigation is conducted for the interaction of tread element with road surface, the influence of tread pattern design on tyre performance, and reasonable design of tread pattern.

本文对胎面单元与路面相互作用，胎面花纹对轮胎性能的影响，以及胎面花纹的合理设计等问题进行比较全面、深入的研究。

The electric field lines are perpendicular to equipotential surfaces, and go from higher potentials to lower ones.

电场线跟等势面垂直，并且由电势高的等势面指向电势低的等势面。

In this paper the effects of scanning truncation error, scanning position error, random amplitude and phase error, and multiple-reflection error in near-field antenna measurement are analyzed; error equations and the uncertainty of measurement are obtained through computer simulation; compensated techniques for reducing the effects of measurement errors in near-field antenna measurement are presented and the formula and arithmetic of phaseless near-field techniques are derived.

本文从解析法和数值仿真两个角度深入分析口面天线近场测量中扫描面截断误差、扫描面位置误差、随机幅相误差、多次反射误差等误差源对天线远场特性测量精度的影响，一方面从理论上给出相应的误差方程，另一方面建立误差分析模型，通过计算机模拟，得到不同误差条件下测量结果的不确定度，并介绍了减小这些误差的修正方法，推导无相位近场测量的公式和算法。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。