分馏的

So the units were revamped by using a new kind of float valve tower and trapeziform valves developed by Tianjin University, which achieved better economic benefits.

采用天津大学开发的一种新型浮阀和梯形浮阀对分馏塔进行了技术改造，收到了很好的效果。

This paper analyzes the defect expanding phenomenon of unbinding defect of clad steel during fusion welding repair.

在苏丹喀土穆炼油有限公司扩建工程的施工中，发现分馏塔的主体材料复合钢板未结合面积超标。

The laser that compares two kinds of different wavelengh denudes system, medium holds back discharge fractional to the element of laser of 213 Nm solid effect improves function apparent.

相比两种不同波长的激光剥蚀系统，介质阻挡放电对213 nm固体激光的元素分馏效应改善功能明显。

Stable isotopes of carbon and sulphur are fractionated during cycling between surface reservoirs and geological reservoirs.

碳、硫在表层储库和地质储库以不同的形式相互转换，在这个过程中都伴随着一定的同位素分馏。

Oil must be fractionated into it's component parts to be useful and sometimes chemically converted to a more usable form, using cracking for example

石油必须先分馏成各种有用的成分，有时还通过化学反应转化成用途更大的形式，例如裂解。

Petroleum as it is found in the earth is a combination of several fractions.

地下发现的石油是由几种馏分组成的混合物。

Different physical, chemical and biological processes may lead to distinctive nitrogen and oxygen isotope fractionations.

引起地下水中NO3含量显著减少的不同物理、化学和生物过程，所产生的氮、氧同位素分馏效应有明显差别。

Their technology and process is basically similar to that used ethylene, the raw material for the oxygen in the silver catalyst, caused by methane or nitrogen stabilizer, the existence of inhibitors of chloride, ethylene oxide directly generate ethylene oxide and ethylene B N and further to certain substances in water than in the tubular reactor for generating hydration ethylene glycol, ethylene glycol solution through evaporation to mention thick, dehydration, fractionation be ethylene glycol and other by-products.

它们的工艺技术和工艺流程基本上相似，即采用乙烯、氧气为原料，在银催化剂、甲烷或氮气致稳剂、氯化物抑制剂存在下，乙烯直接氧化生成环氧乙烷，环氧乙烷进一步与水以一定物质的量比在管式反应器内进行水合反应生成乙二醇，乙二醇溶液经蒸发提浓、脱水、分馏得到乙二醇及其他副产品。

The corrosions of reflux tank of pre-fractionator in an oil refinery were analyzed;proposals and measures for avoiding corrosion were suggested in this paper.

对某炼厂检修发现的预分馏塔回流罐腐蚀减薄情况进行了分析，提出了防止腐蚀的建议和措施。

After the modification, the acetaldehyde consumption and energy consumption were reduced by about 10% respectively, and install time of the towers was only about 1/5 of the float valve towers with cutting 60% of the cost.

采用JKB-125Y型板波纹填料塔代替浮阀塔，对乙醛分馏塔和酒精回收塔进行改造，乙醛单耗及能耗可降低10％，塔设备的投资可节约60％，塔设备安装时间可缩短至原来的1/5。

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。