���[���}�K�W���̂��m�点
为什么要两盏灯？ 这是一种低成本的“补光”技巧，防止物体背光面死黑一片，让立体感更强。，详情可参考safew官方版本下载
Ergonomic keyboard FAQs。WPS下载最新地址对此有专业解读
When they are being manufactured in a weightless environment, those atoms line up absolutely perfectly. The vacuum of space also means that contaminants can't sneak in.，这一点在safew官方版本下载中也有详细论述