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Esses must be selected and products manufactured to give a balanced operation: that is, crude oil must be converted into products according to the rate of sale of each.

实际上，炼油厂从根本上说是一组生产装置，其数量根据生产产品的不同而不同。

In fact, a refinery is essentially a group of manufacturing plants that vary in number with the variety of products produced; refinery proc esses must be selected and products manufactured to give a balanced operation: that is, crude oil must be converted into products according to the rate of sale of each.

实际上，炼油厂从根本上说是一组生产装置，其数量根据生产产品的不同而不同。炼油工艺须经选择，产品生产应该平衡：即从原油生产产品必须依据每一产品的销售速度而进行。

In order for the far-ranging benefits of individual owner-ship to be achieved by owners'companies and countries,employees and other individuals must make their own decision to buy, and they must commit some of their own resources to the choice.

为了使个人所有权的深远益处被所有者、公司和国家都得到，雇员和其他人必须做出自己的购买的决定，而且他们必须为其抉择付出他们自己财富的一部分。

In the design of the supercritical high pressure feed water heater,choose the two kinds of materials of WB36 and 15CrMo at the same time,the high pressure feed water heater must carry on the whole heat treatment,so the anneal temperature of WB36 must be raised above 600 ℃ to satisfy the request of the whole function of the high pressure feed water heater.

在超临界高压加热器的设计中，同时选用了WB36和15CrMo两种材料，由于高压加热器必须进行整体热处理，因此必须提高WB36焊接退火温度至600℃以上来满足高压加热器整体性能的要求。

The keel fin must be on the line, and the pocket level's bubble must read level!

龙骨，鱼翅，必须对路线，和口袋水平的泡沫，必须阅读水平！

To protect the folk literature, we must strengthen the theory study, but also must propagate and exploit its resources.

对民间文学的保护，既要加强理论研究，又要宣传推广和开发利用其资源。

In order to reached the requirements of precision machining,in machining process must use follower rest、flexible active thimble、space block and bracket etc fixture and assistive device. According to may appear problem on machining process, must do some with follower rest, tailstock for further improvement.

为了达到所要求的加工精度，加工过程中要使用跟刀架、弹性活络顶尖、垫块和托架等夹具和辅具，针对加工过程可能出现的问题对普通跟刀架、尾座进行改进。

Therefore, for improving the accuracy of exceed slender axle on turning,must need to do with the lathe fixture and cutting tool for further improvement. In order to reached the requirements of precision machining,in machining process must use follower rest、flexible active thimble、space block and bracket etc fixture and assistive device.

超细长轴在车削加工中承受自身重力、切削力、高速旋转产生的离心力的作用，极容易出现振动与弯曲变形现象，增大轴的几何形状误差，而超细长轴的轴向尺寸较大，直径较小，热扩散性及刚性差，受切削热作用会在轴向发生线性膨胀，若在轴向的伸长量无法得到消除，轴将受迫弯曲，从而影响轴的精度。

Glass items must be individually wrapped with bubble wrap to separate each item at the top, sides, and bottom, or each item must be placed securely in form-fitting Styrofoam material.

对于瓷器和玻璃制品必须在包装内部六个面加垫防震材料，且箱体内每一件瓷器或玻璃制品必须单独使用泡沫或其它材料进行包装。

Foundation bolts and insert plate must be arranged according to the drawings and must be very accurate.

地脚螺栓和预埋底板须根据图纸上的尺寸排布，且应是非常精确的。

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。