绝大多数非线性微分方程是不能用解析方法求解的.The overwhelming majority of nonlinear differential equations are not soluble analytically.与微分相反的运算叫做积分.The operation that is the inverse of differentiation is called integration.这称为正规微分方程组.This is...
The less stable compounds were converted into a compound called Delta-A THC.不太稳定的化合物被转换成了一种叫做Delta-ATHC的化合物。A Delta II rocket was launched from Cape Canaveral early this morning.今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。The delta regi...
This interesting and charming creature is unique to Borneo.这种有趣迷人的动物是婆罗洲独有的。What distinguishes homo sapiens from every other living creature is the mind.智人和其他生物的区别在于大脑。How could anyone find pleasure in hunting and killin...