轮

Usually,most sample cores cannot reach the tree pith for various reasons and it is difficult to determine the trees' cambial ages.

用相同的树轮资料建立估算缺失轮数的最初径向生长模型，其方差解释量高达90.9%。

Taking cydid gear-pin rail chainless traction mechanism of MG375W as an example, make theoretical deduction for the profile and the kinematic characteristics of the cycloid gear , and make simulation analysis for some different engaging positions by computer.

以MG375W采煤机的摆线轮与销排无链牵引机构为例，进行了摆线轮齿廓特性及运动特性的理论推导，对不同的啮合工位进行了计算机模拟仿真分析，得出了中心距及节距发生变化引起啮合传动特性的变化规律。

Charophyceae A class of the Chlorophyta that includes the stoneworts, formerly placed in a separate phylum Charophyta.

轮藻纲：绿藻门中的一纲，以前列为独立的轮藻门。

The coaxal coherent chart of irrigation water puts allfactors into one chart:channel transport capacity, field water consumption strength ,benefit area and irrigation time.

灌溉用水合轴相关图把渠道供水能力，田间耗水强度，效益面积、灌水时间等因素融于一体，按照一定的关系以曲线或直线组绘成合轴相关图，通过该图即可初步设计渠道流量，选定灌溉面积，也可确定轮灌周期、轮灌面积等。

And the system is commonable, can adjust conveniently according to different wheel speed sensors.

轮速识别系统的通用性好，能根据不同的轮速传感器方便地做出调整。

On the basis of the mathematics model of contrate harmonic gear drive, the change law of meshing backlash of contrate harmonic gear was analyzed by meshing analysis software.

据板壳理论采用高度变位对刚轮和柔轮进行变位，在端面谐波齿轮传动数学模型基础上，用啮合分析软件分析端面谐波齿轮啮合侧隙的变化规律。

It is clear that when the book was attached to the multifraction run and electro-optical control at run time, motor brake is frequently used for closing the case of separation action, so that, if the brake friction wheel every time suck-journeyuva or slightly slightly the lawyers'gowns so that it tends to concentrate on local contrate friction to the corresponding axis wheels, and an increase in the work of the resistance of the motor, which in turn lead to a book should be sent along to run slowly.

很较着，当书夹在独不宾运行和光电把持运行时，电机的制动器是在屡不主息呼分别离动息的环境下举行的，这样，当制动器上的摩擦轮每不宾呼分的旅程稍有不到位或稍有方向时，不离便当使其方向的部分端面摩擦到对应的轴轮上，而补充电机的工息阻力，进而引起书夹运行速率减缓。

Cycloidal reducer is new kind of gearing machine which is based on the theory of planeary and cycloid pin geating.

摆线针轮减速机是采用行星传动原理及摆线针轮齿合新颖传动机械。

Auto/hand shift lever, the clutch will shift up and declutch the wormgear to engage the handwheel

柄，使离合器上移脱开蜗轮而与手轮接上（这时松开手柄，手柄将恢复到初始位置）即可手动操作，传动

ON THE BASIS OF DEPARTMENTS LABORATORY BENCHES IN CASE OF KEEPING ALL SPARE PARTS NOT CHANGING,FOUR KINDS OF STRUCTURE AND SPORT OF DEPA...

并在保持所有零部件均不改变的情况下，可在一台轮系实验台的基础上实现四种轮系的结构及运动展示。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。