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The ISS does have its own defenses, of course. Fabric-y buffers envelope some of the systems, and a bumper called the Whipple Shield helps blunt impact. That shield is only built to stop debris up to about 1 cubic centimeter, though, and the debris tracker is only designed to catch pieces 10 cubic centimeters and larger. In other words, there’s a gap in defenses.
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In 1958, he applied to Nasa.
業界專家和經濟學家表示，美國總統特朗普（Donald Trump，川普）最新的關稅變動提高了企業和消費者的不確定性。