上下移动

The top of a spring pendulum is moved to and fro - for example by hand; this motion is assumed as harmonic, which means that it is possible to describe the motion by a cosine function.

一个弹簧振子的顶端被上下来回移动—比方说用手；假设运动为谐振动，也就是意味着有可能用余弦函数来描述此运动。

This study investigated the effects of different platform motion directions (static, heave, roll, pitch and random) and cursor movement angles (0°, 45°, 135°, 180°, 225°, 270° and 315°) on manipulating three different kinds of trackballs to conduct the point-and-click task.

本研究主要探讨船舰载台不同的运动模式（静态、上下起伏、左右摇摆、前后俯仰与随机运动）与平面游标移动角度(0°， 45°， 90°， 135°， 180°， 225°， 270° and 315°)对使用三种不同轨迹球的影响。

The changes have important effect on the stability of the treatment and the function of mastication.

通过牵引成骨和正畸联合矫治严重上颌后缩后，上颌骨的前移和牙齿的移动必然使上下牙的排列和咬合发生变化，而这种变化对疗效的稳定性和患者的咀嚼功能的恢复有着重要影响。

In order to settle the problem of adjusting the surface level of liquid in U type pipe, the author improves the liquid piezometer. The scoop type pipe is used instead of the U type pipe, and is fixed on a board with scale. And the detection head is fixed on the rail which can slide up and down.

为了解决液体压强计中U型管液面难以调平的问题，对该装置进行了改进，将U型管改为勺型管，并固定在有刻度的展示板上，同时将探头固定在可上下滑动的横杆上，使其可以沿着有刻度的金属杆移动。

At the same time, the mark pin is vibrated up and down at the frequency of more than 200 per second by compressing air and make charaters and figures by continuous point lattice on the workpiece.

计算机控制步进电机使打印针按预定的字符或图形的轨迹移动，同时压缩空气使打印针以每秒200次以上的频率上下振动，在工件上打出由连续点阵构成的字符和图形。

The stem was cut into several segments away from the pine seeding, arranged and collected in the order of chronology time and distance from where they were inoculated. To separate B.xylophilus coarsely out from the stems and made them into paraffin slices. And be observed under the potics microscope by dyed with safranin-fast green contrast-stain method and PI fluorescence stain method. In order to find out how about the nematode rigour distributing , but also ebb and flow of their amounts after invading the host pine seeding. Seek the pathological changing orderliness of host cells in different position along with the remotion of nematodes. By deeply analysing the variety of host cell nucleolus to estimate whether the host cell took place the programmed cell death after inoculated B.xylophilus.

按时间进程和与接种点上下距离的远近，对松苗分茎段进行粗分离和制作成石蜡切片，分别用番红-固绿双重染色法和碘化丙锭荧光染色法在光学显微镜下观察，以了解线虫侵染后在寄主体内的准确分布和数量的消长，寻找随着线虫的移动扩散，寄主不同部位细胞病变的数量、速度发生的变化规律，并进一步通过分析其细胞核的变化来判定松材线虫侵染后是否能诱发寄主细胞发生程序性死亡(programmed cell death，PCD)。

In digit, spell, stroke order, stroke, SE input mode, press the key "*" to pop out "List 3 of special symbols", press UP or DOWN to move in order among the special symbols in the list, and the symbol at the position of cursor is indicated with reverse video, press left soft key "confirm", enter

在数字、拼音、笔顺、笔划、SE 输入模式下，按"*"键弹出"特殊符号表3"，按上下键键在表中的特殊符号之间按顺序移动，光标位置的字符以反白显示，按左软键"确认"，输入此字符或按右软键"退出"退出输入特殊符号。

You can move up and down with Z and X, and slow down with the SHIFT key.

您能藉由Z和X键来控制观点的上下，并按下SHIFT键将移动速度变慢。

The spectral intensity at every point around needlepoint is obtained by subtracting the sum of emission at outer layer from the sum at inner layer, and the morphology of ionization region is determined.

反应器可上下和左右移动，发射光谱单次测量可得到光纤耦合入口所在直线上的光强之和。

At same time there are torch holder on the torch carriage, which can be directly adjust to move up and down flexibly to avoid the damage on torch carriage when collision happens.

同时移动体具有夹持器，也可以直接灵活地上下运动，可防止因碰撞而损坏割炬移动体。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷