According to the equation of asymptotic curves, a family of nonlinear asymptotic curves are given to the principalnormal surface.
根据渐近曲线的方程，具体给出主法线曲面的一族非直线的渐近曲线。
2
Whether acting as agent or principal, the freight forwarder (as normal in commerce) usually attempts to contract out of as much responsibility as possible.
作为代理抑或合同主体，货运代理常常试图将自己的责任以代理人的身份避免开来。
3
Principal differences between energy transfer processes in normal operation and PTM operation are compared.