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Therefore, uniform and stable arc welding wire feed is to ensure that an important condition for quality.

因此，均匀稳定的送丝是保证弧焊质量的一个重要条件。

Therefore the change of temperature has great effect on the stresses of concrete arch dam.

因此，温度变化对混凝土拱坝的应力状态具有重要的影响。

The site is therefore hard to recognize as an archaeologically important location; there are not even sherds.

该网站因此难以认识到作为一个考古的重要位置；有没有印。

Therefore, it is very important for us that the archaic town's conservation and planning research.

因此，历史古镇的保护与规划研究在我国是十分重要和必要的。

The Persian name Maka is, therefore, an archaism (which is not uncommon in this period).

波斯的名字马卡，因此，一个古语。

In the picture all procedures need the handicraftsman purify it, and its color only involves black, white, ashy accent, therefore the folk and the style of archaize perform well.

画中所有程序都是有手工艺人精制而成，且色彩只有黑，白，灰调，所以画的民间性和仿古性表现处理的很好。

Sagan and his co-author George Mullen hypothesized that carbon dioxide (CO2) concentrations were much higher during the Archean—possibly 100 times higher than they are today—and therefore the atmosphere could retain enough heat to keep the planet from freezing.

萨根及同事乔治·马伦提出假设：在太古代期间，二氧化碳浓度要高得多——可能比现在高出100倍，因此大气中可能保留了足够的热量，使地球免于冻结。

Further optimal' design and performance test show that smooth transition between Archimedes spiral and cyclone chamber is realized, and therefore more stable flow field and higher separating efficiency are fulfilled.

进一步的优化设计和性能试验表明，空间阿基米德螺旋线进口流道和导流螺旋实现了平滑过渡，从而得到较稳定的流场和较高的分离效率。

Therefore, Archimedes Hob accuracy of detection is very necessary.

所以，对阿基米德齿轮滚刀精度的分析检测是非常有必要的。

Therefore, the architectural culture should be critical and practice.

因此，建筑文化应该是批判的与实践的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。