1·The emulsifier-f ree emulsion polymerization of styrene in the presence of 18-crown-6 has been studied.
本文研究了在苯乙烯不外加乳化剂的乳液聚合体系中，加入王冠醚18-冠-6对聚合反应及其产物的影响。
2·But that wasn't enough to sway top generals, when asked to choose between the Raptor and the much cheaper F-18.
不过那不足以改变将军们当被问及在“猛禽”以及更便宜的F - 18中间做选择时的想法。
3·Now the electronic F-18 has also beaten the Raptor in the hallways of the Pentagon.
如今在五角大楼的走廊里，F - 18的电子战型号也击败了猛禽。
4·The U.S. fighters, Boeing's F/A-18 Super Hornet and Lockheed Martin's F-16, were rejected for what Indian officials describe as failure to meet technical criteria.
美国波音公司的F/A-18和洛克希德·马丁公司的F-16战机均被拒绝。 印度官员称这两家公司在竞标中失败是因为没有达到技术标准。
5·Raytheon's primary customer is U.S. Navy F/A-18 Hornet and Super Hornet aircraft.
雷声公司的主要客户是美国海军F/A-18大黄蜂和超级大黄蜂飞机。
6·If warmings of 10 degrees C (18 degrees F) were really to occur in next three centuries, the area of land likely rendered uninhabitable by heat stress would dwarf that affected by rising sea level.
同样，报告也指出：“如果气温真的在接下来的300年里上升了10摄氏度（18华氏度），与那些由于酷热而将不再适合人类居住的区域这个严重后果相比，海平面上升带来的影响就不值一提了。
7·Gravity causes the core to collapse, making the core temperature rise to nearly 18 billion degrees F (10 billion degrees c), breaking the iron down into neutrons and neutrinos.
重力作用导致核心坍缩，使得核心温度升高到将近180亿华氏度(100亿摄氏度)，将铁原子裂解成中子和中微子。
8·However, transfers of cutting-edge American kit, especially the F-35's stealth capabilities and the F-18's radar, would be far more restricted.
不过话又说回来，如果转让最先进的美式装备，特别是F - 35的隐形功能和F - 18的雷达，美国肯定也会大摇其头。
9·It has tested a biofuel made from the camelina plant in its F-18 Hornet jet.
它已经在F - 18大黄蜂战机上测试一种产自于camelina植株的生物燃料。
10·The new award includes LVT(1) terminal variants and spares for E-2D, F/A-18, E/A-18G, EA-6B, and F-16 aircraft, and the MH-60R/S and CH-53K helicopters.
此次新订单包括LVT(1)终端改型，以及供E-2D、F/A-18、E/A-18G、EA-6B和F-16飞机和MH-60R/S、CH-53K直升机使用的备件。