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To further improve frequency convener s performance,perfect phase-controlled theory and reduce voltage wave-shape s harmonic component,based on cosine interpenetration law the paper presents symmetry cosine law to better trigger points.

为了进一步改善变频器的性能，完善相控理论，减少输出电压波形的谐波成份，在余弦交截法的基础上，提出了用对称余弦法对触发点进行优化。

Starting from discrete cosine transformation, this paper presents a new way to embed digital watermark in images.

从离散余弦变换出发，提出了一种图象中植入数字水印的方法此。

This paper presents a novel steganographic method in Discrete Cosine Transform domain.

提出了一种在图像DCT域内的信息隐藏方法。

Based on AC flow tracing, this paper presents a method for transmission congestion cost allocation with hybrid transaction models.

本文基于有损耗的交流潮流追踪提出了一种混合交易模式的阻塞费用分摊新方法。

This paper presents a correction algorithm according to the countermark characters of cylinder mark printer and correlation provisions of 《Gas Cylinder Safety Supervision Rules》.

中文摘要：针对钢瓶刻印机的刻印特点和《气瓶安全监察规程》中相关规定提出了一种校正算法。

Section Three presents the Creative Approach in five aspects :grades and evaluation;coursebook;teaching method;use of multimedia; teachers personal performance.

通过思想政治课考核评价的创新、教材的创新、教学方法的创新、教学媒体的创新、教师素质的创新这五个方面来构建思想政治课创新教育体系。

Various formalclothes appear on the stage like the flowers to bloom, presents South Korean and royal court style of Japanese dress designing both is magnificent and has some kind of mysterious.

如同花朵绽放一般的形形色色礼服出现在舞台之上，呈现出韩国和东洋王室风格的服装设计既华丽又有一种神秘感。

ABSTRACT To improve the parametric design method which is based on points, lines and circles, this dissertation presents the theory and methodology of parametric design which is based on relating-graph. The expression, organization, cyclic problem, covariation and extension method of relating-graph are studied.

针对当前二维参数化方法中存在的考虑线素较为简单、循环约束问题较难解决等一系列问题，本文系统地研究了基于高层次图素的关联图形的表达、关联图形的组织、关联图形循环约束问题的解决、关联图形的联动以及关联图形的拓广等方法。

The paper presents the structure, features, main specifications and operation method of the new door lock device for covered wagon.

介绍了棚车新型门锁装置的结构、特点、主要参数及其使用方法。

Time presents itself by movement, which is the continuous covering of space.

时间以不断覆盖空间的运动呈现自身。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！