本文以三牙轮钻头的台架试验和油气田现场试验的效果为依据，探讨三牙轮钻头的改进方向。
In this paper, on the basis of the results obtained from the bench and field tests of the three roller bit, its improving direction is approached.
本文经过多次改进和试验，最后采用链环式阴极结构，经生产实践取得了良好的效果。
After testing and improving many times, a chain link type cathodic design is finally set and good results have been achieved in production practice.
改进后的磷化氢发生工艺，在粮库现场应用试验效果良好，整个磷化氢发生及输配过程快速、稳定、安全、彻底，能源消耗低，熏蒸杀虫效果好。
Proved by applying test in the grain depot, this improved technology owed the characteristics as quickness, stabilization, security, low energy consumption and killed pests effectively.
实际运行和试验结果表明，优化改进取得了较好效果。
The results of practical operation and test show that the optimization improvement has obtained better effectiveness.
模型计算结果与采场实际统计结果十分吻合，利用该模型的计算结果对试验采场的爆破设计进行了改进，得到了令人满意的实际效果。
The calculated results from the model were very conformable to the actual statistic results of the stope and were used to modify the blasting design of the test stope, with a satisfactory result.
仿真与试验的结果表明，改进方案显著提高约束系统的性能，增强了其在碰撞过程中对乘员的保护效果。
The results of simulation and test show that the modification scheme markedly improve the performance of restraint system and its occupant protection effects during impact process is enhanced.
对MG250/300-NWD型电牵引短壁采煤机，在大同进行工业性试验期间出现装煤效果差的原因进行分析，并提出改进建议。
The paper analyses poor loading effects of MG250/300-NWD electric-driven short-wall shearer during its testing period in Datong and puts forward the recommendations of improvement.
京西电厂对此作了一系列试验，弄清了高负荷汽包水位异常的原因，对汽包水位的控制方法作了改进，取得了明显效果。
To solve this problem, the plant made a good deal of tests, and thereby found out the causes of abnormal water level and made improvements on the control method with good results.
对传统的格利雅法合成四丁基锡工艺进行了改进，并报道了其半工业试验的效果。
Improvement on the Grignard method is made and the semi industry experiments are reported.
对其密封、结构、材质等作出改进， 将改进后的产品进行了长期的实地试验， 试验效果良好。
The improvement of the pump was presented for its seal capability, configurations, quality of materials and so on, and a lot of field tests for the improved products show good effects.
数值试验表明，这种改进方法较GM(1, 1)模型效果好。
The numerical results imply that the method is better than GM (1, 1).
通过从理论上对水箱温度过高原因的分析，对冷却系统的结构布置提出了几种改进方案，并进行了热平衡试验，所选定的方案使冷却系统的各部件得到合理匹配，提高了冷却效果。
Through a theoretical analysis on the causes of excessive radiator temperature, structural arrangement of the cooling system is improved so that every parts in the system can be rationally matched.
通过分析4105柴油机一度存在的曲轴箱通风不畅和机油消耗高的情况，提出了新的改进方案，经过试验验证，效果良好，并已在生产上应用。
A plan is proposed for improving crankcase ventilation and oil consumption of 4105 diesel engine. Verification test proved that the plan is effective and has been applied in mass production.
对彩虹荧光粉厂原废水处理方案进行了分析，通过化学方法和生化法对其进行了改进试验，得出了非常满意的处理效果。
We analysed an old wastewater treatment process of a phosphor factory, and tested biochemical treatment and chemical treatment. At last, we obtained some efficient results.
采用不同类型原始数据对传统GM（1，1）进行了预测效果数值试验，然后通过对预测结果及传统GM（1，1）基本思想进行深入分析提出传统GM（1，1）存在的问题，并提出了相应的改进思路。
The prediction effect of the GM(1,1) is studied with different kinds of data and the results are analyzed. The insufficiencies of the GM(1,1) are found and some improvement are suggested.
该厂自行试验并筛选确定复合型缓蚀剂，并改进了有关流程，取得了良好的效果。
Complex type corrosion inhibitor is selected through in-house test, modification is made in relative process. Good result has been achieved.
改进后的算法在3830气象雷达上得以实现，给出的试验结果表明该方法具有较好的解距离模糊效果。
The improved algorithm is implemented on a 3830 weather radar, and the experiment result shows that this method has a goo…
第四章着重通过工频耐压试验和雷电冲击耐压试验对产品的改进效果进行验证。
In chapter 4, emphatically through the tests of working frequency insulation and raiden impact insulation, the effect of improving with the product is verificated.
试验结果表明，用改进的BP网络对灰度图像直接感知，在定位精度和速度方面取得较好的效果。
Improved BP algorithm is used to train the network and the precision and rate of management are advanced. The results show that this method is effective.
试验结果表明，用改进的BP网络对灰度图像直接感知，在定位精度和速度方面取得较好的效果。
Improved BP algorithm is used to train the network and the precision and rate of management are advanced. The results show that this method is effective.
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