1·Slower cruising — at about Mach 0.7, or seven-tenths the speed of sound, which is 5 percent to 10 percent slower than today's aircraft — and at higher altitudes, to save fuel.
更低速的巡航——大约0.7马赫，即音速的十分之七，比今天的飞行器低5 - 10%——并且飞行于更高海拔以节约燃油。
2·But, Schmidt says, the combo antimatter fusion engine could not likely generate the thrust needed to get up to seven-tenths light speed.
不过施密特也指出，混合反物质聚变发动机产生的推力很可能达不到所需的7/10光速。
3·The target is seven-tenths of 1% of gross national income.
这项标准是援助达到国家粗收入的千分之七。
4·Personal income ended the year on a buoyant note, rising seven-tenths of 1 percent in December and helping to life wages by 6 percent for the year as a whole, the Commerce Department said today.
商务部今天说， 本年终结，个人收入景象乐观，十二月份增加百分之零点七，总计全年工资提升百分之六。