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...
The holiest of their chapels are topped with gilded roofs.他们最神圣的教堂屋顶镀了金。The Lord Mayor follows at the rear in his gilded coach.市长大人坐在他阔气的马车里在后面跟着。The golden light gilded the sea.金色的阳光使大海如金子般闪闪发光。...
The coating has good incombustibility, namely incombustible even in a temperature as high as 1200 centigrade.度牌氧化改性矿物涂料具有无机物之特性,其抗温性能特别好, 不但在1200摄氏度的高温下不会燃烧,而且阻燃....