测试验证了垂直飞行所需的所有系统功能运作，并测量STOVL系统运行时飞机安装力量和时间。
The testing demonstrates functional operation of all systems required for vertical flight, and measures the installed forces and moments on the aircraft during STOVL operations.
如果项目出了问题，这要比你交付一些代码到临床试验去测试一种新药要花费的时间久。
Suppose that project goes wrong, and it takes longer than expected to deliver some code that Clinical Trials needs to test a new drug.
有太多的选择和时间太少，以试验和测试不同的广告系统。
There are simply too many choices and too little time to try out and test different AD systems.
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