他们问那飞行员累积了多少飞行时数。
他必须跟进补上自己的飞行时数，还得通过一系列的考试。
He needs to keep up his flying hours and there are some exams to get through.
而去年的飞行时数创记录的达到了80万小时。
而去年的飞行时数创记录的达到了80万小时。
六名试飞员里的每一位都有数千小时的战斗机飞行时数。
Each of the six pilots has thousands of hours of fighter time.
他说，以以色列的无人机为例，其单位飞行时数的费用不到以色列喷气战斗机的5%。
The cost per flight-hour of Israel’s drone fleet, for example, is less than 5% the cost of its fighter jets, says Antan Israeli, the commander of an Israeli drone squadron.
陷湓于相同的试飞内容甚至是更多的试飞内容，我们完成任务所用的飞行时数更少了。
We have fewer flying hours to accomplish the same amount of work or more work.
在研发周期相同的阶段，我们的飞行时数和使用的飞机都要少得多，但我们的研究要更为深入，因为我们更有经验了，工具也更强大了。
We have fewer flying hours and fewer planes at an equivalent point in the development cycle but we are further along because we have more experience and better tools.
在采访的当天，爱德华兹空军基地两架F - 22中的一架开始了F - 22的第89次飞行并将累积的飞行时数增加到了190个小时。
The day of the interview, one of the two F-22s at Edwards set off on the eighty-ninth F-22 flight and added to the 190 hours already accumulated.
在采访的当天，爱德华兹空军基地两架F - 22中的一架开始了F - 22的第89次飞行并将累积的飞行时数增加到了190个小时。
The day of the interview, one of the two F-22s at Edwards set off on the eighty-ninth F-22 flight and added to the 190 hours already accumulated.
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