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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With the added range, gross weight, and control harmony the plane is a pleasure to fly.

随着航程、重量的增加，飞机控制的更加平稳，驾驶它就是一种乐趣。

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