Based on the experimental feature of the cascades, the correspondent relationship of stage shaft power and efficiency between fixed and variable geometry was derived. 利用级叶栅的实验特性,推导出模型级轮周功及效率特性在变几何前后的对应关系。
Study on N, P and K accumulations at rice grain filling stage and nitrogen efficiency of grain production under different nitrogen fertilizer rates 不同施氮量下水稻灌浆期氮磷钾的积累与氮素籽粒生产效率杨梅根瘤共生固氮放线菌的分离与鉴定
When the upstream rotor wake impinges upon the leading edge of the downstream rotor, the corresponding stage efficiency will be higher; 当上游尾迹被输运到下游叶列前缘附近的时候,对应较高的级效率;
The results show that the curved stators used in this paper are not to improve the stage efficiency. 研究表明本文采用的弯导叶方案没有提高级效率。
When a large output steam turbine is used for load adjustment in a power grid, its last stage at light volume flow faces some new problems, including the decrease in stage efficiency, the erosion of the bucket exit edge and the fluttering of the bucket. 大功率汽轮机参与电网调峰在小容积流量下运行时,末级面临效率下降、动叶出汽边水蚀、叶片颤振等新问题。
The Mixer-settler is still being widely used as one of the most liq-liq, extraction equipment, how to increase the stage efficiency and decrease the power consumption of the Mixer-settler are the main problems of its study and designing. 混和澄清器目前仍是广泛应用的液-液萃取设备,如何进一步提高其级效率和降低能耗是对混和澄清器的研究和设计的首要课题。
Based on qualitative research to surplus oil and comprehensive analysis to reservoir, this paper sets up the relation between stage displacement efficiency and oil-injection volume, and analyzes the waves and coefficient. 在剩余油定性研究的基础上,基于油藏工程理论的综合评价,建立了油砂体阶段驱油效率与注入倍数的关系,进行波及系数分析等;
Based on the studies of the effects of main parameters on mass transfer stage efficiency, the optimal operating factors were obtained. 在研究IS-RPB转速和撞击流初速对萃取级效率影响的基础上,确定了最适宜操作条件。
The final results indicate that the stage efficiency has been increased by more than 3% with a satisfactory improvement of the flow structure inside the stage. Experimental studies of the model stage were also carried out to verify the numerical calculation. 最终结果使小流量模型级整级性能得到明显的改善,级多变效率提高约3个百分点,初步达到了预期的优化要求。
New techniques of leading edge sweep and any spatial stack curve have been applied to aerodynamic design of both rotor and stator in order to improve stage efficiency. 在气动设计过程中,为了改善级效率,使用了前缘掠型和任意空间积迭曲线新技术。
Appearance of CBN wheel leads to grinding technology's revolution, hence grinding machining enter into a new stage of high efficiency. CBN砂轮的出现导致了磨削技术革命,磨削加工由此进入了一个可实现高效作业的新时期。
The basic conclusion of this model is, one economical system's long-term growth advancement divides into accelerates and decelerates stages, accelerated growth stage is efficiency to urbanization and industrialization economical system. 该模型的基本结论是,一个经济体的长期增长进程分为加速和减速增长两个阶段,加速增长阶段表现为快速工业化和过去利用效率过低的农村劳动力大规模城市化。
Analysis and Evaluation of Effects of Turbine Stage Efficiency on Output Power and Heat Rate 汽轮机级效率等参数对功率热耗率影响的分析与计算
This paper presents an analysis of the reheating regenerative steam turbine cycle by the small deviation method and thereby derives the expressions for the effects of internal stage and turbine efficiency on output power and heat rate. 本文用小偏差方法对再热&回热汽轮机系统进行了分析,得到级内效率、缸内效率等参数对输出功率、热耗率等参数的影响系数表达式。
As supplement nitrogen application at booting stage, nitrogen efficiency was the lowest. 孕穗期追施氮肥,氮效率最低。
The Fe 3+ extraction is very slow kinetically and the stage efficiency of Fe 3+ is low. 由于Fe3+的萃取动力学速率比较慢,因此其萃取级效率比较低。
The CCCMS was compared with the ordinary mixer-settlers in stage efficiency of extraction, solvent entrainment loss and economic effects. 并与普通混合澄清器进行了萃取级效率、溶剂夹带损失和经济效益对比。
Especially pronounced being the change of leasing velocity loss, remarkably effecting stage efficiency. 变工况下余速损失的变动尤为剧烈,其对级效率的影响甚大。
Choosing proper opening lap value between governing valves can improve governing stage efficiency. 选择合适的调节阀重叠度能够提高调节级效率;
As the CAD/ CAM technology develop to a better stage, efficiency of product design and manufacturing should be improved. 随着模具CAD/CAM技术向着更高方向的发展,必将提高产品的设计和制造效率。
Although the work of building energy efficiency in China has got to the core of stage, energy efficiency renovation of the existing buildings with a large number of high-energy consumption still has great potential. 我国的建筑节能工作虽然已取得许多实质性的发展,但对大量高能耗的既有建筑节能改造的工作仍然具有巨大的潜力。
In this development in line with hospital characteristics, standardized management system, energy metering, in order to better adapt to the measurement of electrical energy requirements at this stage, improve efficiency, to provide quality customer service to build a network platform for mutual exchange. 在此开发符合我院特色的电能计量规范化管理系统,才能更好的适应现阶段电能计量工作要求,提高工作效率,为提供优质客户服务搭建相互交流的网络平台。
Fifth chapter to the seventh chapter separately on the highway operation stage social efficiency, the management benefit and the combined earnings appraisal content, the target system, the appraisal model has carried on the analysis, and carries on the contrast analysis to the appraisal model. 第五章至第七章分别就高速公路运营阶段的社会效益、经营效益和综合效益的评价内容、指标体系、评价模型进行了分析,并对评价模型进行对比分析。
The overall efficiency of Chinese-funded life insurance companies is slightly higher than the foreign life insurance companies, but while the efficiency in fund-raising phase are higher than foreign life insurance companies, the one in the investment stage efficiency is slightly lower. 中资寿险公司总效率略高于外资寿险公司,其中筹资阶段的效率一直高于外资寿险公司,投资阶段效率则略低于外国寿险公司。
Therefore, if the errors and defects were detected in time during early stage, the efficiency of designing and developing software systems would achieve remarkable increases at much smaller expenses. 如果能够在早期设计阶段及时发现并避免错误,会大大减少设计开发、应用维护的成本,显著提高软件系统设计及开发的效率。
Wet steam flows within steam turbine leads to two major problems, loss in turbine stage efficiency and blade erosion. 蒸汽透平中的湿蒸汽流动降低了级运行效率,同时也造成了叶片可靠性下降。
With a large number of highway tunnel of China entering the operational phase, tunnel maintenance work is more and more important, but maintenance and management of highway tunnel started late in our country, and it is still in the primitive stage of low efficiency. 随着我国大量公路隧道进入运营阶段,公路隧道养护工作越来越重要,但是我国公路隧道养护管理起步较晚,还处于原始的低效率阶段,对公路隧道土建结构病害评价还处于定性阶段。
Under variable conditions of condensing steam turbine, the control stage enthalpy drop, the speed ratio and stage efficiency parameters change. 凝汽式汽轮机在变工况条件下运行时,调节级焓降、速度比以及级效率等参数均会随之发生变化。