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- He learned technical skills by trial and error. 他通过不断摸索掌握技能。
- I lost the instruction book and so I had to find out how to use the machine by trial and error. 我把说明书丢失了，结果只得通过不断摸索才弄懂怎样使用这部机器。
- 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的。
- Specific behaviour must be determined by trial and error. 特殊的行为必须是通过探索试验来决定。
- Children learn to use computer programs by trial and error. 儿童们通过反复摸索才学会运用计算机程序。
- The experts produce a new product by trial and error. 专家们经过反复试验,研制了一种新产品。
- 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。
- My progress has been spasmodic and interrupted by trial and error. 我的投资经历了试验和错误。
- Specialists have invented a new product by trial and error. 专家们经过反复试验;研制了一种新产品.
- The above general rules allow the isopachics 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。
- 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。
- Assuming we have predicted G, we can solve for N by trial and error. 假定我们已经预测到g，就可以用试误法来解N。
- We were given no instructions how to do the work,so we had to learn to do it by trial and error. 没人指导我们如可干这项工作，我们只有反复尝试摸索着干。
- Fred learned only by trial and error and taught Charlie only enough to get him started. 只有学会查理教授只够让他开始。
- I lost the instructionbook and so I had to find out how to use the machine by trial and error. 我把说明书丢失了,结果只得通过不断摸索才弄懂怎样使用这部机器。
- They didn't know how to put in a central heating system, but they managed it by trial and error. 他们不知道怎样安装集中供暖设备, 但是经过反复试验终于安装好了。
- We were given no instructions how to do the work, so we had to learn to do it by trial and error. 没有人指导我们如何干这项工作,我们只有反复尝试摸索着干。
- By trial and error, I figured out where pet can help and where they can be a hindrance. 通过不断的试验和失败，我终于明白宠物在哪些地方有用，在哪些地方反而是妨碍。
- Wise old masters, on the other hand, are experimental thinkers who proceed by trial and error. 而睿智年老的大师，从他们自身的实验和错误中得到启发。
- Methods To select best chromatographic condition by trial and error,making changes in sorbent,developing agent. 方法通过改变吸附剂、展开剂、显色剂,筛选出适宜的层析条件。
