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.
if (controller.desiredSize
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Must achieve = 99% accuracy on 10,000 random test pairs (held-out, fixed seed)，这一点在safew官方版本下载中也有详细论述
当年，乔布斯曾直接否定了「触控 MacBook」的可能性，他认为触控技术不太适合用在笔记本屏幕这种垂直放置的触控界面，用户需要一直举起手臂使用，很快就会疲劳。
Here are common examples you'll run into across the difficulty levels: