鼓风机

Good hands on skills on compressors/pumps/blowers/valves repairing, have at least one kind of compressor (centrifugal compressor/reciprocating compressor/ screw compressor/roots blower etc.,)principle knowledge and repairing experience

在压缩机、泵、鼓风机修理方面具有熟练的技能。熟知至少一种压缩机的原理（离心式压缩机、活塞式压缩机、螺杆式压缩机、罗茨风机）和设备维修经验。

Hunting, snowmobiling, using machines such as leaf blowers, lawnmowers and power tools, and attending or playing in loud music concerts commonly expose people to dangerous noise levels.

狩猎，爱好滑雪车，使用机器，如叶鼓风机，割草机和电动工具，以及出席或玩，在嘈杂的音乐演唱会常见的人，以危险的噪音水平。

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。