垂直方向往复运动

An industrial sewing machine for the completion of a button hole comprises a needle holder that is connected via an arm to means which ensure a forward and backward motion perpendicular to the direction of the needle.

一种用于缝制钮扣眼（1）的工业缝纫机包括一个通过一臂（21）与一装置相连接的缝纫针夹持器（20），该装置确保缝纫针夹持器沿着垂直于缝纫针运动方向的方向往复运动。

The shaper tool straight line advance and return movement is host motion when plane chop, that workpiece moves in the perpendicularity and host direction of motion intermittence is to feed motion.

刨削时，刨刀的直线往复运动是主运动，工件在垂直与主运动方向的间歇移动是进给运动。

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。