反复试验

Through trial and error, piron mastered the grapefruit tree rings, cutting method to technical training for orchard, on-the-spot guidance two agricultural enterprises and farmers cut part adopts loop technique, make one year earlier results, grapefruit, fruit-set rate increase production, realizing the early, Summarizes the grapefruit organic methods, fully in the stable yield, improve the quality of grapefruit.

通过反复试验，刘强掌握了柚树环割的方法，多次到果园进行技术培训，实地指导两个农业企业和部分农民采用环割技术，使柚子提早一年结果，座果率大幅度提高，实现了早结、丰产；总结了柚子完全施用有机肥的方法，在稳定产量的同时，提高了柚子质量。

This kind of material can be made as the compound cement quick-setting additiv e--D-quick-setting additive which can decrease the alkalinity of the quick-set ti ng additive but increase the viscosity of the jet materials.

针对目前国内速凝剂存在的普遍问题，我们经过反复试验、研究，选出一种辅料，制成可降低速凝剂碱性、增加喷射料粘度的复合型水泥速凝剂--D型速凝剂。

Result:After many repetatur experiments in different conditions,high express and purification from recombination were selected.

结果：经过多种条件的反复试验，实现了重组蛋白的高效表达和纯化。

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。

All the new products are stringently tested and repeatedly experimented with to guarantee product quality.

我公司新产品全部经过严格的性能测试和实地反复试验。

Through trial and error, I found out for myself that both of these schools are suboptimal sleep patterns.

通过反复试验和错误，我们发现了这两种方式都不是对于睡眠的最佳模式。

After much trial and error, we found a formula which fitted,wrote Tench, who had nothing to do with the Brown case but discovered the italicized letters when studying the ruling.

坦奇并未插手布朗一案，但他在阅读判决书时发现了那些斜体字母，他写道："经过反复试验后，我们发现有个公式恰好可用来破译法官的密码。"

This involves a lot of trial and error, and even

这需要大量的反复试验，和甚至更多的测验。

After a lot of trial and error, I got it to work.

经过反复试验，我懂了工作。

Lots of mistakes in the trial and error school are also a big part of it.

崇尚反复试验的学派中的很多错误也是其中的一大部分。

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。