First we will set up a simple logical test that checks to make sure the speed of a swallow falls within a specified range, since the airspeed of a swallow may vary.

首先，我们将设置一个简单的逻辑测试用于检查确保燕子坠落的速度在规定的范围内，因为燕子的空中速度可能不同。

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NHTSA proposes to require a more stringent endurance test and to add a new high speed test for several heavy load range tires for vehicles with gross vehicle weight rating of more than 10,000 pounds.

国家公路交通安全管理局提出对一些车辆毛重超过10，000镑的载重胎要有一个更严格的耐久性试验和一个新高速测试。

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E5071C network analyzer has a wide range of frequency and many functions, in the same product with the highest frequency performance and the fastest test speed.

E5071C网络分析仪具有广泛的频率范围和众多功能，在同类产品中具有最高的射频性能和最快的测试速度。

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