查询词典 trial and error

4LZ－0.5、4LZ－0.2mico-combine was develop-ed by our scientific research personnel's by trial and error and absorbing many excellences from medium and small combines in many years,which had been judged by Hunan province in 2004 and obtained nati-onal patent,and which are a newly combine that can be suitable for the natural conditions in South,the requirementsof agriculture and the economical status of county.

4LZ－O.5、4LZ－0.2微型水稻联合收割机是我公司科研人员根据我国南方水稻的自然条件、农艺要求和农村的经济状况，吸收了国内外中小型联合收割机的长处，经多年的反复研究试验而成的一种新型联合收割机，2004年通过省级鉴定，并已申请国家专利。

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。

When it comes down to it, I guess I'm a lot more like Annie Oakley than Dolly, and it took some time, and a lot of trial and error, to realize how to dress like my own self.

把这个问题想到底，我猜我更像安妮·奥克利而不是多莉。我花了一些功夫，尝试了很多错误，才意识到如何穿出自己的风格。

Without acquiring the basic skill in bees keeping an intending Apiculturist will be wasting his time and money doing trial and error methods.

没有获得基本技能的蜜蜂保持打算Apiculturist将浪费时间和金钱做试验和错误的方法。

Many methods of bleaching had been developed by trial and error and tradition.

通过试验，汲取成功的经验和失败的教训，人类创造了许多漂白方法。

Instead, they work by making best guesses and by trial and error.

事实上，他们的行为是做最佳的假设，实施计划和犯错的结合。

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。

To our knowledge, the error of training is mostly chosen by trial-and-error.

它涉及网络训练误差允许值的选取以及网络预测结果的评价。

The key technologies of Grid Method including grid divided in basin, impact radius of rainfall and number of reference rainfall stations have been discussed with example. The parameters of Grid Method have been selected through trial and error. Using simple random sampling to simulate the failure to collect rainfall, the relation between surface rainfall calculation error and station density, station distribution, uneven spatial distribution of rainfall has been sought.

论文探讨了流域网格剖分、降雨影响半径、搜索半径范围和参证站数量等关键技术，研究了网格法参数的优选，并采用简单随机抽样模拟降雨缺测情况，给出了面雨量计算误差与流域站网密度、均匀度、降雨分布不均匀性指标的关系。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。