查询词典 common seal

First, common pump problems: China's oil fields now use the plunger and pump barrel to more than gaps between the main seal.

一、常用抽油泵存在的问题：现在我国各油田使用的柱塞和泵筒间多以间隙密封为主。

First common pump problems: China's oil fields now use the plunger and pump barrel to more than gaps between the main seal.

一、常用抽油泵具有的问题：现在我国各油田使用的柱塞和泵筒间多以间隙密封为主。

I rely on companies with strong technical force, guided by the market, in the service users, and set up factories in the common development of ideas and innovate, to produce a number of patented product - Oil Seal Guide Trimming machine, bridge Single automatic mill, the thick-as the mainstay for many in need of special-shaped stone counterparts Stone Processing Machinery.

我公司依靠着雄厚的技术力量，以市场为导向、本着服务用户、共同发展的办厂理念，不断创新，生产出了一批以专利产品--油浸密封导轨切边机、桥式单头自动磨机、定厚机为主体的、适合众多石材同行需要的异形石材加工机械。

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。