七的

It was found when ionic liquid BF_4 was chosen for the solvent and CsF for the fluorination reagent, the overall yield 96.6% could be gotten after 3 hours.

通过研究我们发现在离子液体BF_4中，采用CsF做氟化剂反应3小时七氟醚的产率可以达到96.6％。

Recently several years,the company is engaged in development of Halon substitute,and since year 1997 has successively succeeded in development of 5 kinds substitute,HFC227ea heptafluorpropane,HFC23 fluoroform,HFC236fa hexafluoropropane ,HCFC/A,HCFC/C.

近年来，我公司致力于哈龙替代品的开发，97年以来先后开发成功七氟丙烷、三氟甲烷、六氟丙烷、HCFC/A、HCFC/C五种替代品，形成千吨级生产规模，并已大批量出口海外。

Muti-methods have been utilized to study geological modeling and remaining oil distribution in fluvial reservoir in west area of No.

论文应用多种方法对孤东七区西的河流相储层地质建模及剩余油分布进行了深入研究。

Muti-methods have been utilized to study geological modeling and remaining oil distribution in fluvial reservoir in west area of N...

论文应用多种方法对孤东七区西的河流相储层地质建模及剩余油分布进行了深入研究。

7Th day in Yunnan, we went to airport right after the breakfast, to flyback to Kunming City.

在云南的第七天，我们正团人马吃完早餐就前往机场，飞回昆明市。

As a community NGO, The National Security Archive issued seven Knight Open Government Audits during 2003 to 2008. These have become a template of FOIA commentary.

美国"解密国家安全资料库"作为公益性非政府组织在2003－2008年持续发布了七篇"奈特开放政府系列调查报告"，已经成为对政府信息公开实况予以社会评议的一个范本。

Thereinto,the measuring circuit is composed of heating circuit, voltage follower circuit, warning circuit, gas sensor failure indication circuit and power supply indication circuit;The microprocessor adopts 8051 Single - Chip computer;The LED adopts Seven LED figures display;The keyboard adopts separate type non-coding keyboard.

其中测量电路由加热电路、电压输出电路、报警电路、气敏元件损坏指示电路和电源指示电路组成；微处理器采用8051单片机；LED显示采用七段LED数码显示器；键盘采用的是独立式非编码键盘。

La Fontaine A cobbler passed his time in singing from morningtillnight;it was wonderful to see,wonderful to hear him;he wasmorecontented in shoes,than was any of the seven sages.

无论见到他本人或听见他的歌声都使人觉得很愉快。他对于制鞋工作比当上了希腊七贤还要满足。

The Food and Agriculture Organization says seven out of ten of them do not get the food they need.

联合国粮农组织指出该国十个人中有七个人得不到他们所需要的食物。

Planktonic foraminifera assemblages of 79 core top samples from the western and southern areas of the Indonesian Archipelago were grouped using cluster analysis. The results indicate that foraminifer assemblages make it possible to sub-divide the studied area in five provinces. The modern ocean characters and the surface sediment features from the five provinces are studied in the project.

本项目依据印度尼西亚多岛海及邻区七十九个海底表层样品的浮游有孔虫组合聚类分析结果，将该区划分为五个洋流活动区，对各区现代海洋学性质与海底表层沉积物特点进行对比研究。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。