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According to various of the technical difficulties such as low drilling efficiency in hard rock and short service life of diamond drilling bit, analysis was made on the inherent links between blade-extruding of hot-pressing diamond and rock abrasiveness.

中文摘要：针对在坚硬致密岩石中钻进时效低和钻头使用寿命短的技术难题，分析了热压钻头的金刚石出刃与岩石研磨性等岩性之间的内在联系，认为钻头的胎体成分及其性能是关键，硬而带脆性的胎体性能有利于金刚石出刃，从而能提高钻进速度。

In order to solve the problem of low efficiency and short service life of hot pressed diamond bit when drilling in hard and compact formation, relations between diamond exposure of hot pressed bit and rock abrasiveness were analyzed in this paper. Research on matrix performances of hot-pressed diamond bit was firstly carried out.

针对在硬而致密岩石中钻进时效低的难题，本文分析了碳化钨基热压钻头的金刚石出刃与岩石研磨性等岩性之间的内在联系，认为钻头的胎体成分及其性能是关键，硬而带脆性的胎体性能有利于全刚石出刃，从而能提高钻进速度。

It has good advantages of high grinding efficiency, big drying capacity, product finess is easy to be adjusted, low noise, low power consumption, simple process flow, low abrasiveness, operating cost saving and etc.

该设备具有粉磨效率高、烘干能力大、产品细度易于调节、噪音小、电耗低、工艺流程简单、磨耗小、运行费用省等优点。

The little boy is always absent-minded in class, not to say his study efficiency after class.

这个小男孩在课上总是心不在焉，更不要说他课后的学习效率了。

It also applies kernel density estimation method to investigate the accumulative relative productivity and the dynamic evolvement of its distribution. The result shows that there exists no country level absolute convergence of the provincial productivity whether incorporating environmental factors or not. The provincial TFP index is in a divergence trend and the provincial technical efficiency index has a convergence trend when incorporates environmental factors.

无论是否考虑环境因素，代表东、中、西三大区域的虚拟变量均不显著，表明不存在俱乐部收敛；当所考虑的控制变量为基础设施水平、工业化水平、经济开放度、能源强度时，所有的控制变量皆不具有统计显著性，表明不存在条件收敛。

We find that absolute humidity constrains both transmission efficiency and IVS much more significantly than RH.

这组作者重新分析了来自此前发现了病毒传播和相对湿度之间微小联系研究的数据，结果证明了流感病毒的传播和绝对湿度之间有更加强烈的相关性。

In this thesis, working condition that influence the two evaluating indicators has been analyzed on basis of experiment study. Statistics has been used to deal with the experiment data, and work out a expressions that can count the real time efficiency of total heat exchanger from temperature difference and absolute humidity difference of inside and outside air and working air volume.

本文采用实验的方法，对影响全热交换器的两个效率的工况因素进行了分析，并采用多元线性回归的方法对实验数据进行处理，得到一个通过室内外空气间的温度差，绝对湿度差和工作风量来计算全热交换器的实时工作效率的经验公式。

However, operating of the high current, the output power, gain, and efficiency of gyro-TWT will be degraded where the absolute instability, gyrotron backward oscillation and reflective oscillation occur to cause mode competition. Stability issues comprise the key factors limiting the performance of the gyro-TWT.

对於高电流的影响，磁旋行波放大器将有可能引发绝对不稳定、磁旋返波振荡(gyrotron backward oscillation；gyro-BWO)及反射振荡，造成模式竞争而抑制原先操作模式的放大波，进而影响其输出功率、增益及效率。

However, operating of the high current, the output power, gain, and efficiency of gyro-TWT will be degraded where the absolute instability, gyrotron backward oscillation and reflective oscillation occur to cause mode competition. Stability issues comprise the key factors limiting the performance of the gyro-TWT, therefore physical origins of spontaneous oscillations in the gyro-TWT are analyzed and characterized.

然而受限於操作高电流，磁旋行波放大器可能引发绝对不稳定性、磁旋返波振荡(gyrotron backward oscillation；gyro-BWO)及反射振荡，造成模式竞争而抑制原先操作模式的放大波，进而影响其输出功率、增益及效率。

During the ascending of flue gas , a part of particles is taken out of absorb tower with flue gas, while another part returns to circulating fluid bed due to its own weight to further increase the thickness of bed particles and prolong the reacting time of absorbefacient, which highly ensure the desulphurization efficiency.

烟气在上升过程中，颗粒一部分随烟气被带出吸收塔，一部分因自重重新回流到循环流化床内，进一步增加了流化床的床层颗粒浓度和延长吸收剂的反应时间，从而有效地保证了脱硫效率。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。