爬

Stop clamber ing over my new furniture.

不要在我的新家具上爬来爬去。

You're the first man to climb down that tree before climbing up it.

你是第一个不用爬上树就从树上爬下来的人。

But he can't come up or climb down difference in level on the floor.

但是他还未能爬上爬下，只能在同一水平移动。

The fat owner climbed up the ladder, closing the door , then climb-down the ladder, accept a ladder into the warehouse, then said easily:Ok!

胖老板爬上梯子，关好储藏间的门，然后爬下梯子，把梯子收进仓库，然后轻松地说：好了！

Researches show that the drive force characteristics of the electric tractor drive system based on series DC motor is close the ideal characteristics, the curves are concave, low speed with constant power, and high speed with constant torque; the electric tractor has large working speed under different shifts, but the extensive coincidence speed shows that the variable ratio of the gear is unreasonable; the maximum climbable gradient of this electric tractor is more than 30%, and does not need frequent shift when working for its extensive climbable gradient; there are many influence factors of continuous working time, which the more obvious factors are working speed and working load, the working time increases with the increase of the working speed and working load.2. Simulation researches on the drive characteristic of the electric tractor.

研究结果表明：基于串励直流电动机(来源：ABC21论文网www.abclunwen.com)的电动拖拉机电驱动系统的驱动力特性场接近理想驱动力特性场，其各挡下的驱动力特性是一组下凹的曲线，低速恒转矩，高速恒功率；同一行驶速度下所对应高挡驱动力大于低挡驱动力，这是由电机的调速特性决定的；电动拖拉机各个挡位下具有较广的稳定作业速度范围，但是各个挡位之间速度重合的范围较多，说明所用变速箱变速比与电动机匹配不合理；电动拖拉机最大爬坡度达到30%以上，并且各挡爬坡度变化范围较广，作业过程中不需要频繁换挡；影响电动拖拉机连续作业时间的因素较多，其中作业行驶速度和作业负荷影响最为明显，作业负荷越大，连续作业时间就越短，作业速度越快，连续作业时间就越短。2、电动拖拉机驱动特性仿真研究。

I clumb up the shed and crept into my window just before day was breaking.

我爬上了棚屋，爬进我的窗户，那正是天蒙蒙亮的时刻。

I went down to the front garden and clumb over the stile where you go through the high board fence.

我走过了下面屋前的园子，爬上梯子，爬过高高的木栅栏。

We tramped and clumb around all over it, and by and by found a good big cavern in the rock, most up to the top on the side towards Illinois.

我们围着这处地方爬上爬下，终于发现了山岩里有一个大山洞，是对着伊利诺斯州那一边的，快到山顶了。

In my job I spend a lot of time crawling around.

我的工作是花很多时间爬来爬去。

I my job I spend a lot of time crawling around.

我的工作是每天花很多时间爬来爬去。

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％。