在冷凝器接近标准圆锥接头处打四个穴孔.Make four indentations into the condenser near the standard cone joint.上述装置也称为圆锥摆.The present device is also called a conical pendulum.设有一组平行线与圆锥曲线相交.Consider a family of parallel lines that cut the co...
There is a smouldering anger in the black community.在黑人社区里，人们的心中都揣着一团怒火。That's a lot of people smouldering with resentment...许多人的心里都在愤愤不平。Whole blocks had been turned into smouldering rubble.整座整座的街区都变成了一堆冒着青烟的瓦砾。A n...