engineers are forever seeking more economical methods of solving old problems . 工程师们常常探索解决老问题的更加经济的办法。
in the next chapter we shall explain another method of solving this problem, using the concept of the moment of a force . 在下一章,我们将说明用力矩的概念求解这个问题的另一种方法。
a new method of solving problem for nonlinear least square 对最小二乘问题的研究
a simple method of solving first-order indefinite equation 一次不定方程的简易解法