片通

Liuhe Friction Materials plant in Jilin Province is located in Changbai Mountain, the Yitong River, are the production of automotive brake linings, mine hoist brake shoe and brake oil rig block professional factory.

吉林省柳河摩擦材料厂位于长白山下，伊通河畔，是生产汽车制动器衬片、矿井提升机制动器闸瓦和石油钻机刹车块的专业厂。

We can get better bandpass filtering properties by adjusting the size of metal sheet and the number of layers.

调节此滤波器的金属片的尺寸和介质片的层数我们得到了较好的带通特性。

Infrared bandpass filters have been successfully used in earth sensors of about 30 satellites developed by our country.

红外带通滤光片已成功地应用于我国自行研制的近三十颗卫星的地球敏感器上。

Dampers off according to Stainless Steel Safety Relief Valves, Closed system requirements, system disable and open during normal operation is located in the state, Such as the pipe conveying gas temperature below the selected film melting point fusible metal when the normal operating state, the valve is open.

防火阀的通断根据系统的要求，系统停用与正常运行时是位于开启状态的，如管内输送气体温度低于所选定的金属易熔片的熔点时，属正常运行状态，阀门是敞开的。

Dampers off according toStainless Steel Safety Relief Valves, Closed system requirements, system disable and open during normal operation is located in the state, Such as the pipe conveying gas temperature below the selected film melting point fusible metal when the normal operating state, the valve is open.

防火阀的通断根据系统的要求，系统停用与正常运行时是位于开启状态的，如管内输送气体温度低于所选定的金属易熔片的熔点时，属正常运行状态，阀门是敞开的。

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。