The only evidence of pandas was their tracks in the snow...熊猫活动的唯一迹象是它们留在雪地上的足迹。Scientists believe there are about 1,600 giant pandas living in reserves in the mountains of China..科学家认为有1600只大熊猫生活在中国山区的保护区。Fewer than a t...
...some regular geometrical shape.一些对称的几何图形Both geometrical nonlinearity and elastoplastic were considered in the element model.单元模型中考虑几何非线性和材料非线性的双重影响.Euclid was trying to convey his idea of a geometrical point.欧几里得试图表达...
Potrai costruire una casa per chi non ce l'ha.如果这只猫有点疯狂(matto),长大了就变成砖头.Esta es una poes í a que trata de la vida en la frontera con el Brasil.这是一首描述与巴西接壤那带地方生活的诗.Lo m á s bonito es verles felices, con una sonrisa.最...
台钳上有刻痕的虎钳牙帮助它紧咬住工件.The scored jaws of a vise help it bite the work.工件已经上了车床.The workpiece is already on the lathe.我们只是用磨床将工件抛光和精加工.We used grinding machines only to smooth and finish a workpiece....