净空

Stern frame to be shaped to obtain sufficient clearance of the propeller and obtain smooth streamline.

艉部结构应建造成能使螺旋桨有足够净空间并获得光滑流线的形式。

Everyone from Formula One drivers experiencing drag, through to aeroplane passengers suffering a bumpy flight, will have experienced clear-air turbulence, the mixing of high- and low-speed air in the atmosphere.

从每一名经历过阻力的F1赛车手，到正遭遇颠簸飞行的乘客，可能都会经历净空的湍流，在这样的氛围中，它汇聚了低速和高速的两种气流。

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。