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There are many social and economical reasons that cause crime rate to rise.

犯罪率上升还有许多社会和经济原因，以上提到的几点，是人类社会的阴暗面。

A simple and practical method to reequip the hobbing machine by using CNC system to machine the crown gears is introduced. It has advantages of high machining quality and efficiency, high stability and reliability, simple operation, good adaptability to different lots, easy to realize, low cost and high benefit. It is an economical and efficient technique to machine crown gear. It is of particular extending value, meeting the domestic needs of crown gear coupling manufacturing.

介绍了一种新开发出的简单实用的数控化改造普通滚齿机加工鼓形齿轮的方法，它具有加工质量好、生产效率高、系统稳定可靠、操作简单、产品批量适应性强、改造容易实现、改造成本低、效益高等优点，是一项经济有效的鼓形齿轮加工技术，适合现阶段国内鼓形齿联轴器制造的要求，具有较高的推广应用价值。

Using self-made carbon steel crucible instead of porcelain crucible is an economical,practical,simple and rapid way to determine the carbon content in cement raw meal with phosphogypsum.

用自制碳钢坩埚代替瓷坩埚，测定磷石膏制水泥生料中的碳含量，经济实用，简便、快速。

Cultural lag refers to the notion that society is unable to keep up with the rapid pace of technological and economical development.

这个名词阐述的概念就是：一个社会在科技和经济等物质方面都在快速成长的同时，处於这个社会中的人们在精神思想上却无法跟上脚步。

Instead of costly equipment replacement, it is economical and reasonable to resort to fault current limiter.

在此情况下，开发和应用故障电流限制器则可能成为更经济的选择方案。

Both the advantages and disadvantages of traditional fault current limiting technology were analyzed. The analysis indicates that development of a new fault current limiter with economical and technological excellence was significant and urgent for present day power grids.

分析了传统故障限流技术的优势和存在的问题，指出研制性能优良、经济合理的新型故障限流器对电网发展具有重要的现实意义和应用价值。

Economical and technical analysis of non superconducting fault current limiter.

非超导型故障电流限制器的技术经济分析。

The problem of water leakage from curtain for cutting off water is reasonably solved after the conception of apparent connection width and construction method of big connection width in curtain for cutting off water in deep-mixing piles are proposed from practical engineering need. The economical benefit of the construction method of big connection width is better than that of construction method of traditional connection width.

6从实际工程需要出发，在深层搅拌桩止水帷幕中提出了视搭接宽度的概念和大搭接宽度设计施工方法，较好地解决了止水帷幕中桩间开叉漏水的问题；大搭接宽度施工方法与传统搭接宽度施工方法相比，还具有较好的经济效益。

As reinforced by cement, the soil's physical and mechanical properties could be improved much better. Meanwhile, the cement soil is economical, applicable and convenient to construct and it has many other merits. Hence, it applies far more in areas of base and slop stabilization, curtain for cutting off water, deep foundation ditch support structure and other projects.

因为土体经过水泥加固后，其物理力学性质能得到较好的改善，同时水泥土还具有经济适用、施工方便等优点，所以在地基加固、止水帷幕、边坡加固与稳定、深基坑支护等方面得到很广泛的应用。

However, curtilage the key is not be economical, more blame is lazy, and going up at passing with reasonable low cost businesslike, have fun and significant life.

然而，宅的重点不是省钱，更非偷懒，而在于以合理的低成本过上有效率、有乐趣和有意义的生活。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了