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It showed that the propane recovery rate of new process would be 23%~27% higher than that of cryogen refrigeration process at the same refrigeration temperature. To increase the absorption tower pressure appropriately was good to improve the propane recovery rate. However, the choice of pressure must take the pressure of the feed natural gas and product gas into account together. The flow rate of absorbent had great effect on propane recovery rate and tower heat load.

本文实例研究表明：相同制冷温度下，冷剂制冷－油吸收复合工艺的丙烷回收率比原冷剂制冷工艺可提高23%~27%适当提高吸收塔的压力，对增大丙烷回收率有利，但吸收塔压力的确定要综合考虑原料气压力和外输气压力的大小。

After the DHX process was used on the light hydrocarbon unit to recover C3(superscript +) compound, it had a good result that the recovery rate of C2 compound was higher in the same operation conditions. And the liquid ethane could be used as the cryogen and absorbent to increase the recovery rate of C3(superscript +) compound and decrease the energy cost greatly at the same time.

以回收C3为目的轻烃装置采用DHX工艺（DHX塔闪蒸+脱乙烷塔分馏）后，在相同工况下能使C2获得更高冷凝率，并通过液态乙烷的制冷剂和吸收剂作用使C3收率大幅提高，达到节能降耗的同时也提高了C3收率。

Eighteen years later, Casa Grande crowned La Cuesta Encantada, Hearst's "Enchanted Hill" above tiny San Simeon.

18年后，卡萨格兰德加冕德拉库埃斯塔恩坎塔达，赫斯特的"魔法山"小圣西米恩以上。

La Cuesta Encantada,"The Enchanted Hill" high above the ocean at San Simeon, was the creation of two extraordinary individuals, William Randolph Hearst and architect Julia Morgan.

德拉库埃斯塔恩坎塔达，"魔法山"高空海洋在圣西蒙，是设立了两个杰出的个人，威廉鲁道夫赫斯特和建筑师朱莉亚摩根。

Headquartered in Cunard Line, Santa Clarita, Princess Cruises operates luxurious cruise ships to people of different income groups.

总部设在丘纳德线，圣塔克拉瑞塔，公主游轮豪华游船经营的人的不同收入群体。

Aiming at bottom roof caving and support impact problems induced with abrupt large scale caving upper roof in face 21303 of Daliuta mine, this paper put forward the motion parameter at roof caving and calculation formula of roof shear breaking force with the help of theorem of momentum, theorem of moment of momentum and D' Alembert principle. Roof caving process was simulated by Ansys Ls-DYNA program, and maxim impact force was got. The theoretical research outcomes in the paper were applied in face 21303 of Daliuta mine, and were accordant with actual observing status of roof caving process.

针对神东煤炭公司大柳塔煤矿活井21303综采工作面，上层采空区顶板突然大规模垮落对下层顶板及支架的突然冲击问题，文章采用动量定理、动量矩定理、达朗伯原理推出了顶板垮落瞬间的运动量及顶板切顶垮落所需要的剪力值计算公式，用ANSYS LS-DYNA程序对顶板垮落过程进行了数值计算，得到了最大冲击力，在大柳塔煤矿活井21303综采工作面对顶板垮落特征进行了实际观测和理论成果验证。

This is the website for Department of Anatomy and Cell Biology, University of North Dakota.

这是北塔科塔大学解剖与细胞生物学系的网站。

This is the website for Department of Neuroscience, University of North Dakota.

这是北塔科塔大学神经科学系的网站。

This is the website for Department of Microbiology and Immunology, the University of North Dakota.

这是北塔科塔大学微生物学与免疫学系的网站。

This is the website for Department of Pharmacology, Physiology, and Therapeutics, University of North Dakota.

这是北塔科塔大学药理学、生理学与治疗学系的网站。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。