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。
WTD series of coaxial single-stage mechanical seal type vortex pump is the latest design of our factory replacements.
WTD系列同轴机械密封式单级旋涡泵是我厂最新设计的更新换代产品。
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。
Also, the influence of the parameters of the coupling loops on the passband response is analyzed for a single-stage YIG resonance filter.
同时，分析了单级振子YIG滤波器中耦合环参数对通带响应的影响。
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。
Both the extraction ratios of countercurrent multi-stage extraction and cross current multi-stage extraction were higher than single-stage extraction.
多级逆流或错流萃取的萃取率明显高于单级萃取。
Premium special solvent oil has been produced from kerosene fraction with LK-1 hydrogenation catalyst and single-stage hydrogenation process developed by LPECRI.
以煤油馏分为原料，采用洛阳石油化工工程公司工程研究院开发的LK 1型加氢催化剂及单段加氢工艺可生产出优质环保型特种溶剂油。
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 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。
Finally, the paper introduced single-stage fuzzy comprehensive evaluation method for the appliance effect of classified countermeasures of mountainous rural highway security engineering.
最后介绍了一级模糊综合评价方法，对山区农村公路安保工程分级对策应用效果进行评价。
Lots of engineering examples show that the exponential curve models, for either single-stage loading or multi-stage loadings, can well predict foundation settlement, but they have shortcomings.
大量工程实践验证表明，无论是一级荷载还是多级荷载下的指数曲线模型，均可对地基沉降进行较好地预测，但也存在不足之处。
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。
When we entered the design stage, however, the necessity of modeling the communication mechanisms between the two systems would likely overburden the single diagram.
然而，当我们进入设计阶段时，两个系统中的通讯机制建模的必要性使得单一的图表过于复杂。
Coldplay, who took to Glastonbury's main stage on Saturday night, saw their 2002 single In My Place creep back into the top 40.
上周六晚在格拉斯顿伯里主舞台演出的酷玩乐队则见证了他们2002年的单曲《In MyPlace》重回排行榜第四十的位置。
Device Stage makes connecting and working with devices easier than ever with a single interface to manage devices and run common tasks.
通过使用单一界面来管理设备并运行常见任务，DeviceStage使得设备的互联和使用更加简单。
And with the first down beat, the drums roaring at the rear of the stage, I knew I'd reached that childhood goal of being "the leader of the band," if only for a moment, if only for a single piece.
随着第一个敲击声的落下，随着鼓声在舞台后方鸣鸣作响，我知道，我达成了童年时想成为“乐队指挥”的目标，哪怕只是一小会，哪怕只是指挥一首小乐曲。
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。
Single suction, single stage horizontal centrifugal pump with closed impeller.
单吸、单级卧式离心泵，用封闭叶轮。
With the increase of R, the propene conversion of the single stage and the selectivity of cumene increase and the side reaction decreases.
随着苯丙烯比的升高，丙烯单程转化率上升，异丙苯选择性上升，副反应降低。
At this stage, our application is running in a production environment for a customer whose data-processing requirements only warrant the use of a single machine.
在这一阶段，我们的应用运行在一个客户的生产环境里面，客户的数据处理需求只需要使用单机。
VDC provides a single management interface to stage applications running on OpenSolaris, Linux or Windows in its cloud.
VDC提供的单一管理界面可以将OpenSolaris,Linux以及Windows下运行的应用搬到其云端。
In this scenario, the XML stage filters out only the home address from the input XML file, then maps the entire employee information to a single output sequential file.
在该场景中，XMLstage从输入XML文件中仅过滤出家庭住址，然后将整个员工信息映射到单一输出顺序文件。
The single stage skewed tooth cylindrical gears reduction gear optimized design, is a multi-objective optimization question.
单级斜齿圆柱齿轮减速器的优化设计，是一个多目标优化问题。
The single stage skewed tooth cylindrical gears reduction gear optimized design, is a multi-objective optimization question.
单级斜齿圆柱齿轮减速器的优化设计，是一个多目标优化问题。
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