The PCI and ISA buses are designed into motherboard as expansion slots.PCI和ISA总线都作为扩展槽设计在主板内.Spring loaded coned pins shall be used for two - way and four - way datum holes and slots.配有弹簧的锥形销被使用为 双向 和四向方式的基准孔和槽孔.Slots t ...
The orbits of planets in the once popular geocentric Ptolemaic system are epitrochoids.曾经盛行的托勒密地心说体系里的行星轨道就是外旋轮线.Mars and Earth have orbits which change with time...火星与地球的运行轨道随着时间而变化。Other enumeration problems lead us to...