查询词典 efficiency engineer

The transformation efficiency of potato via Agrobaterium tumefaciens system was studied,and the result showed that stem cutting is better than leaf for its high callus induction efficiency ,strong ability to differentiation and regeneration and easy to obtain.

并对遗传转化体系进行了优化：采用加入AgNO3有效的防止了外植体在培养过程中的褐化问题；对于转化过程中预培养的时间、共培养时间、农杆菌浸染时间和浸染浓度进行了试验，茎段的预培养2天、叶盘预培养3天，共培养时间茎段为3天、叶盘以2天为宜。

The results show that:(1) The space-charge fields(include dc space-charge fields and ac space-charge fields) have important effect on the beam-wave interaction output power, make the saturated output power lower, saturated position delay;(2) The back-radio excited by the electron beam has little effect on the output power, and can be ignored;(3) The transverse motions of electron beam has some effect of the output power;(4) The means of phase velocity taped and bunch compression can improve the relativistic TWT efficiency, especially bunch compression can greatly improve the efficiency.

五、分析了相对论行波管三维非线性特性，分析结果表明：(1)空间电荷场（包含直流和交流空间电荷场）对注波互作用输出功率影响很大，会造成饱和输出功率减小，饱和位置推后；(2)电子注激发的反向辐射对输出功率影响比较小，基本上可以忽略不计；(3)电子注横向运行对注波互作用的直接影响比较大；(4)通过改变耦合腔内半径来调节慢波结构相速，采用相速跳变和预群聚的方法可以改善相对论行波管的效率，特别是采用预群聚方法，可以尽量提高相对论行波管的效率。

Compared with single-cylinder dryer with the same efficiency, its heat efficiency is improved about 50% and energy consumption saving doubles.

与相同效率的单筒烘干机相比，热效率提高50%左右，节约能耗一倍以上。

A flat high efficiency super-broadband source was presented. We achieved a C+L-band superfluorescent source, in the region from 1524. 0 to 1600.4nm, the power of the ASE are over -12. 0dBm and the ASE profile excursion is only ±1. 4dB in the region from 1539. 2 to 1600.4nm. The power of the ASE is 22. 1mW and the power conversion efficiency is 18. 8%. 9. The amplification characteristics of thulium-doped fiber amplifier had been studied using the basic theory for fiber amplifier. The connection between the Tm-doped fluoride fiber and silicon fiber was accomplished, and we studied the TDFA and the reason that the expecting results hadn't achieved had been analyzed. The assumption of the Er-Tm-co-doped silicon fiber had been presented, and we studied the Er-Tm-co-doped silicon in cooperation with the correlative corporation, some results had been got and the further studies are carried on.

实验结果得到了覆盖C+L-波段的超荧光光源，在1524.0-1600.4nm波长范围内，自发辐射谱的功率均高于-12.0dBm；在1539.2-1600.4nm波长范围内，自发辐射谱不平坦度为±1.4dB；荧光总功率为22.1mW，功率转换效率为18.8%； 9、应用光纤放大器的基本理论，理论分析和研究了掺铥光纤放大器的放大特性；解决了氟化物掺铥光纤与硅基光纤的连接问题，进行了TDFA的实验研究，分析了没有得到预期结果的原因；最后提出了铒-铥共掺硅基光纤的构想，并与有关单位合作，共同研制了铒-铥共掺硅基光纤，得到了一些前期结果，进一步的研究仍在进行当中。

The results showed that scion's coarseness of single bud green branch grafting was weak comparatively, but its grafting efficiency was remarkably higher than efficiency of bud grafting and shield budding.

结果表明：单芽绿枝接仅在接穗的粗生长上略逊于传统的&工&形芽接和嵌芽接，但其工作效率却远高于传统嫁接法。

For pump power, with the liquid viscosity increases, lift and efficiency, shaft power increases, so sometimes on industrial liquid viscosity viscous heating to make smaller in order to improve transmission efficiency.

对于动力式泵，随着液体粘度增大，扬程和效率降低，轴功率增大，所以工业上有时将粘度大的液体加热使粘性变小，以提高输送效率。

In pumping high-viscosity oil, with the increase of the shaft speed, the efficiency of the pump at the optimum operating point is improved, and the flow rate and hoisting height at the optimum efficiency point rises, therefore the rated speed of the viscous oil pump should be remarkably higher than that of the water pump.

输送高粘油时，随着泵轴转速的提高，离心泵最优工况点的效率提高，最佳效率点的流量和扬程也相应提高，因此，输送粘油用的泵的设计转速必须比水泵有较大幅度的提高。

High pressure revolving water jet technology has an obvious advantage in drilling large hole diameter and long continuous holes and is also characterized by high efficiency,energy saving,large and regular borehole,high rock-breaking efficiency when drilling coal seams.

高压旋转水射流技术在钻大井径、长连续孔方面具有明显优势，在煤层中钻井又具有高效、节能、钻孔大、成孔规则、破岩效率高等优点，因此在煤层气地面径向水平井技术和井下采空区钻长直井技术中广为应用。

Machining capability includes machining quality and cutting efficiency. Machines machining capability is usually assessed by the tiptop precision and superficial roughness that can be reached of the being processed part. The cutting efficiency is usually assessed by the most limit value of removal rate or cutting dosage.

机床的加工性能包括其加工质量和切削效率两个重要的方面，通常甩被加工零件能达到的最高精度和表面光洁度来评定机床的加工质量，用金属切除率或切削用量的最大极限值来评定机床的切削效率。

It is a very typical phenomenon in the process of modernization that labors flow from the first-tier industry of low efficiency to the second- or third-tier industries of higher efficiency.

劳动力从低效率的第一产业向效率较高的第二、第三产业的持续转移，是各国现代化过程中普遍的现象，但劳动力转移的动因、方式、速度、机制等，却因资源禀赋、发展阶段的差异而有所不同；同样，我国不同省份的劳动力转移当然也存在着构成、动因、机制等差别。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。