The paper discussed a half-bridge converter of single-stage PFC with ZVZCS.
文章讨论了一种带有ZVZCS的单级PFC半桥变换器。
Within the range of this discount, the buyer's single-stage order tactics can be changed into two-stage one.
在此折扣范围内，买方的订货策略可以由单阶段订货改为两阶段订货。
Curently, we pricing of guarantee is based on experience or directly employs single-stage option pricing method.
目前对担保的定价是在单阶段清偿的前提下，采用经验定价和单阶段期权定价两种方法。
We evaluated applicability and efficacy of single-stage surgical treatment of SBMLC patients encountered in our department.
我们评估我们科里患有SBMLC的患者一期外科治疗的适应症和可效性。
Recently, internal and overseas investigators are developing single-stage PFC circuit, which has higher PF and lower price.
现在国内外正在开发研究单级功率因数校正电路，具有很高的功率因数，且成本低。
This paper introduces a novel topology about single-stage PFC converter based on bridge inverter and analyzes its theory of operation.
提出了一种基于桥式逆变电路的新型单级功率因数校正变换器的电路拓扑。
To reduce the component counts and the cost, the single-stage power factor correction (PFC) techniques have attracted more and more attention.
在低功率应用中，为了减少器件和成本，单级功率因数校正(PFC)技术越来越受到人们的关注。
Single-stage single-suction centrifugal pump is designed in compliance with performance and size prescribed in the international standards ISO2858.
单级单吸离心泵是根据国际标准ISO2858所规定的性能和尺寸设计的。
The effects of bleaching additives on hypochlorite single-stage high temperature fast bleaching of reed neutral sulfite pulp is studied in this paper.
本文主要研究了芦苇中性亚硫酸盐浆次氯酸盐单段高温快速漂白时加入助剂的影响因素。
Three simple recovery processes of alkali in small-scale paper mill are evaluated, and single-stage condensation-combustion process is stabler and more economic.
对目前运行中的三种简易碱回收方法了述评，指出一级浓缩燃烧法是能够正常、稳定、经济运行的好方法。
Passive Power factor correction circuit, two-stage and single-stage APFC circuits are researched, which applications are given by comparison of their performance.
对无源pfc电路、有源两级PF c电路和有源单级PF C电路进行了分析及性能比较，指出它们分别适用的场合。
The decolorization ratio of syrup in sulfitation process is higher through experiments with multiple-stage flotation of syrup than that with single-stage flotation.
实验证实，糖浆多级上浮清净法比普通单级上浮法更能使亚法糖浆获得较高的脱色率。
A lowest no-load temperature of 13.8 K has been obtained for the first stage without thermal connector, which is a new record for the single-stage pulse tube cooler.
在没有热桥连接的情况下，单独测试第一级最低制冷温度达到13.8K，这是单级脉管制冷机获得的最低制冷温度新纪录。
But there are some shortage of ordinary single-stage heat pump in low-temperature environment, such as high compression ratio, devoid heating power and low efficiency.
但普通单级空气源热泵热水器在低温环境下运行中存在压缩比过大、制热量不足和制热效率太低等问题。
The new world order from concept of realism balance the power as the central building and other single-stage, two-stage, multi-level theoretical models of world order.
新现实主义的世界秩序观以权力、均势等为中心构建单级、两级、多级世界秩序的理论模式。
We summarized the experimental work of 50W/30K single-stage G-M refrigerator in this paper, and presented us the result of theoretical investigation and structure design.
本文对50W/30K单级G-M制冷机第一步的研制工作进行了总结，给出了理论分析和结构设计的结果。
The precondition of constructing single-stage high power factor high power supply based on flyback topology is that the release rule of transformer energy-storage is clear.
构造基于反激拓扑的单级高功率因数的大功率电源的前提是弄清变压器的储能和释放规律。
Novel circuit structure and topologies of single-stage DC switching power supplies with uninterruptible power supply and high power factor, based on flyback converter, are proposed.
该文提出了一类基于反激变换器的单级不间断高功率因数直流开关电源电路结构与拓扑族。
This study presents a new single - stage single - switch PFC flyback DC converter.
文章研究了一种新型单级单开关PF C反激变换器。
Moreover, its operation process principles and critical parameters are analyzed, its simulation results proved that the novel single stage high power switch source's power factor can achieve 0.995.
分析了该电路的基本工作原理、关键参数的设计计算，仿真结果表明这种新型的单级大功率开关电源功率因数可达到0 . 995。
High flow midship pump. Up to 2250 GPM. The best selling single stage pump. Midship Split Drive Line Manifolded pump.
高流量中置泵，最大流量达2250GPM。是最畅销的单级泵。复合以中置分离传动轴承泵。
The optimum conditions of masson pine kraft pulp single stage oxygen delignification has been studied.
本文研究了马尾松硫酸盐浆单段氧脱木素的最佳工艺条件。
To make hot water turbines applicable for practical purposes, a series of tests, such as isolated tests of nozzles, buckets and single stage turbines, have been conducted.
为了使热水透平应用于实际，进行了喷嘴单独试验、动叶单独试验与单级热水透平试验等一系列试验。
Firstly a project is presented how to refit a R175 diesel. Secondly the system design calculations are made. Finally we make a single stage compressed air engine.
为此，先确定供油系统的改装方案、后对改装零件进行设计和计算，最终经由R175单缸柴油机制得单级压缩空气发动机。
Use this platform to optimize the blades of a NASA transonic single stage turbine, the bended stacking line and the profile of this transonic stator.
运用该平台对某NASA跨音速单级透平动静叶片及该透平静叶的叶型和弯积叠线进行多目标气动数值优化研究。
The hub treatment with a circumferential groove was tested on the stator hub and compared with the casing treatment over the rotor tip for a single stage axial flow compressor.
在单级轴流压气机上，用周向槽式处理机匣在静子内径处进行轮毂处理，与转子尖部机匣处理作类比。
Experimental tests have been carried out to investigate the influence of inlet distortion on compressor stability margin in a low speed single stage research compressor.
在低速大尺寸单级压气机实验器上，实验研究了动态进气畸变对压气机稳定边界的影响。
The technology of FAS single stage bleaching of ONP deinking pulp are investigated, the result show the optimum bleaching conditions are FAS 0.
实验主要探讨了ONP脱墨浆FAS单段漂白的工艺条件，找出了FAS漂白的最佳工艺条件为：FAS用量0。
These units feature a single stage oil flooded rotary screw for increased productivity at reduced operating costs, and they're skid mounted for permanent installations.
这些组件配有单级旋转螺杆有助于降低运营成本，提高生产率，这些产品为滑动底板安装。
According to the basic conditions of Tahe oil field, the paper discusses the reasons of using single stage double plugging cementing methods in intermediate casing.
根据塔河油田的基本情况，分析了技术套管固井使用单级双封固井技术的原因。
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