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This paper presents a new method for OCC, which has no reset switch, and so is very simple. Small signal model is established. Theoretical analysis is verified by simulation results.

本文在分析单周控制方法基本原理的基础上，提出了无复位开关的单周控制新方法，以Buck变换器为例，建立了控制系统的小信号模型，通过理论分析和仿真结果证明了该方法的正确性。

The operation condition of a series-resonant converter is equivalently analyzed under open-loop condition. OCC condition and selection basis of resonant parameter and switching frequency are determined. The relationships between LED number, transformer turns ratio and constant current error are also determined, which provide scientific basis for the selection of LED number and transformer turns ratio.

文中通过对串联谐振变换器开环工作状态的等效分析，确定开环恒流条件和谐振参数与开关频率的选择依据，以及LED数目、变压器变比与恒流误差之间的关系，为LED数目及变压器变比的优化选择奠定了理论基础。

Considering the strength enhancing efficiency of phenol-formaldehyde resin modified by triethylamine and diethylene triamine in OCC pulp, the efficiency of phenol-formaldehyde resin modified by diethylene triamine was better than triethylamine.

综合考察二乙烯三胺和三乙胺改性的酚醛树脂的增强作用，二乙烯三胺作为改性剂时改性的酚醛树脂要优于三乙胺改性的酚醛树脂。

The results suggested that MoO42- could abate pH decrease and Cl- enrichment, and inhibit the auto-catalyzing acidification effect inside the OCC, so retard the development of underscale local corrosion obviously.

结果表明，MoO42-能有效地减缓闭塞区内pH值降低及Cl-浓集、减弱酸化自催化效应、抑制垢下局部腐蚀。

The results show that the HOMO of ZDDP is mainly composed by p atomic orbital of sulphur atoms and the frontier electron densities (subscript occ of them are higher than the oilier elements of ZDDP, thins it can be deduced that the sulphus atoms are the wrist likely points if attack during the surface reaction.

研究表明ZDDP的活性元素为2种位置上的S元素，ZDDP与铁摩擦副作用可能的断键位值是S-P和P=S键。

It Was a dangerous ganle:on one occ.ion hewas seen on a cross-Channel steamer with NeFly.

这是一个危险的游戏：一次有人看见他和内莉一道乘坐穿越海峡的轮船。

The stickies were confirmed that it was from hot melt adhesives in the OCC.

同时介绍了去除浆中热熔胶黏物的应用情况。

In a nutshell, it's clear that the Midwest OCC market is the sloppiest in the country right now.

在简单来说，很明显，中西部地区的协调中心市场是sloppiest在该国的权利。

Objective The relationship between occ upational stress and strain of patrolmen and criminal policemen was studied.

目的探讨警察暴露的职业紧张因素及其对心理健康的影响。

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。