查询词典 by trial and error

Determination of laser absorptivity of metal by numerical calculation technique and trial-and-error method .

用数值计算技术和试错法确定金属材料表面对激光的吸收率。

Traditionally, new welding conditions were studied by the accumulated experience of trial and error approach, which was not suitable to the development level of our countrys society and economy for it usually result in high cost and long lead-time.

传统上对摩擦焊接工艺的开发都是采用经验性"试错"的方法，这种方法的研制成本巨大，研究周期长，不适合我国社会经济发展的基本国情。

You learned to walk by repetition and trial and error of some simple procedures.

学习走路的过程就是一些简单程序的重复和反复试验。

And, most of all, you knew that by trial, and what some may call "error," you would eventually become completely and consciously reoriented in your new environment.

最重要的，你知道，通过尝试你将最终可以完全地，有意识地重新在你的新环境里选择方向。

Rohrs, the same woman who learned to swim in college by watching others and playing a personal game of trial and error, will swim on Saturday in the fifth annual Maryland Eastern Shore Marathon Swim, an 8-mile journey up and down the Chester River.

夫人Rohrs ，同样的女人谁学会游泳的大学生观看他人和发挥了个人比赛的试验和错误，将游泳今天在第五次年度马里兰州东海岸马拉松游泳活动， 8英里的路程向上和向下的切斯特河。

This experimentation was to be guided not by random trial and error, however, but rather by scientific habits of mind.

这种实验并不是通过随机抽样调查或错误，而是靠科学的思维习惯。

Cao Yushu total right to build wells at coal mine near a period of construction work to be fully affirmed the work of the next stage of requirements: First, be aware of Coal Mine Safety Elm Well the importance of pre-production and further enhance the sense of responsibility and sense of mission , we must bear in mind the "second pioneering" historical mission, to take more effective and more practical methods of work, the scientific arrangement of the work, carefully organize construction work, the remaining project duration inverted one by one to ensure that mine pre-production schedule; second, is necessary to study the construction process to solve difficulties and problems arise, focus on strengthening the soft rock supporting and construction process of research, trial and error comparison, mine worked out well for Elm soft rock supporting a new road.

曹总对榆树井煤矿筹建处近一时期的矿井建设工作予以了充分肯定，并对下一步的工作提出了要求：一是要认识榆树井煤矿安全试生产的重要意义，进一步增强责任感和使命感，要牢记肩负的"二次创业"历史使命，采取更加有效、更加务实的工作方法，科学安排各项工作，精心组织施工，对剩余工程逐项倒排工期，确保矿井按期试生产；二是要及时研究解决施工过程中出现的困难和问题，重点加强对软岩支护和施工工艺的研究，反复试验比较，摸索出适合榆树井煤矿软岩支护的新路子。

As a result, engineers have to establish process parameters by trial-and-error approach.

在实际生产中，旋压工艺的制订仍然依靠工艺人员通过一些简单的经验计算公式并结合个人的实际经验的方法来确定。

Since our economic reform is carried on by trial and error, it is a dynamic process of redressing the balance where necessary.

我们的经济改革依靠不断摸索因此是个不断适时纠正偏差的前进过程

By making reasonable assumptions about the mechanical boundary conditions of orthogonal cutting,a slip line field model is constructed by a trial and error method,in which the influence of cutting edge roundness is considered.

对正交切削过程的力学边界提出了合理假设，用试探法建立了考虑切削刃钝圆影响的滑移线场模型及相应的速度场模型。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。