查询词典 pressure pump

Because the automobile applies the brake the braking force which needs to be quite big, and is quite frequent, therefore the automobile applies the brake mainly to use the air compressor and the hydraulic pump energizes, the corresponding braking system respectively is the barometric pressure braking system and the hydraulic brake system; The human body mechanical energy mainly uses in the passenger vehicle in the vehicle arresting gear, the driver draws the hand brake lever or steps on presses the foot pedal dive flap, carries on effectively through the steel wire after the wheel applies the brake in the vehicle, prevents the vehicles stop when the landslide or slides moves.

由于汽车制动所需的制动力比较大且比较频繁，所以汽车制动主要采用空气压缩机和液压泵供能，对应的制动系统分别是气压制动系统和液压制动系统；人体机械能则主要用于轿车的驻车制动装置，驾驶者拉动手制动杆或踩压脚踏制动板，通过钢索对后车轮进行有效的驻车制动，以防止车辆停车时滑坡或溜动。

The Magdeburg hemispheres were designed by German scientist Otto von Guericke in 1650 to demonstrate the air pump he had invented and the concept of air pressure.

马德堡半球是由德国科学家奥托。冯。格里克于1650年设计的，以展示他所发明的空气泵和大气压力原理。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。