The U. S. lost its preeminence in industrial robotics at the end of the 1980s, so that nearly all robots for welding, painting and assembly are imported from Japan or Europe. The U.

八十年代末美国丢掉了它在工业机器人方面的领先地位，所以许多焊接、喷涂和装配的机器人都是从日本和欧洲进口。

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Is U.S. preeminence on the wane and who or what might take its place?

FORBES: The Sydney sessions

The one power that could conceivably challenge U.S. preeminence is China.

CENTERFORSECURITYPOLICY: FLIRTING WITH DISASTER

Second, and related to the first, the National Aerospace Plane can contribute greatly to reestablishing U.S. preeminence in space, for civilian as well as military purposes.

CENTERFORSECURITYPOLICY: The National Aerospace Plane