by trial and error

by trial and error 基本解释

反复试验, 不断摸索

by trial and error 用法和例句

1、Learn by trial and error

通过反覆试验学习

2、He learned technical skills by trial and error.

他通过不断摸索掌握技能。

3、He completed a model car by trial and error.

他靠尝试错误法完成了那模型车。

4、Still, it was a lot of learning by trial and error.

他们仍然在从试验和错误中学习开店的经验。

5、You need to learn what works by trial and error.

你必须要通过实验和错误去学习什么是管用的方法。

6、They also need to practise skills and learn by trial and error.

他们也需要锻炼技巧和通过反复试验来学习。

7、Factorization of this equation by trial and error is not possible.

用试凑法对这个方程进行因式分解是不可能奏效得。

8、The above general rules allow the isopachs to be drawn by trial and error.

有了上述的一般规律，即可采用试凑法来描绘等和线。

9、The IRR can be found by trial and error by using a number of discount factors until the NPV equals zero.

内含报酬率可以采用验误法用一系列的折现数计算。

10、This safeguard prevents anyone who might find a card from trying to crack the identification code by trial and error.

这一保险措施可以防止有人用试错法解开密码。

重点词汇

trial n. 审判, 试验, 艰苦, 麻烦事, 考验 a. 审讯的, 试验性的

error n. 错误，过失；[法]误审，违法；[数]误差