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By utilizing the cross-gain modulation effect and the period-one oscillation harmonic frequency-locked in an optically injected semiconductor laser, we can extract the wavelength conversional individual channel optical clock from the optical-time-division-multiplexing signal. In a FP-LD, we numerically simulate the extraction of 20 GHz optical clock at 1550 nm from the 2×20 Gb/s OTDM signal at 1555 nm, and experimentally obtain the -105 dBc/Hz phase noise frequency division clock of 12.36 GHz to 6.18 GHz with simultaneous wavelength conversion from 1550.24 nm to 1545.91 nm.

采用一个FP半导体激光器作为全光分路时钟提取及波长转换器，数值模拟实现了从波长为1555 nm、速率为2×20 Gb/s的光时分复用信号中提取出波长转换为1550 nm、重复频率为20 GHz的分路光时钟，实验完成了从波长为1550.24 nm、重复频率为12.36 GHz光脉冲信号中提取出相位噪声为-105 dBc/Hz的波长为1545.91 nm、重复频率6.18 GHz的分频光时钟。

A novel compensating method is provided utilizing the stator currents decoupling and the linearization of the angle interval of current vectors.Based on the performance index of voltage utilization ratio, total harmonic distortion, switching loss and etc, various PWM methods have been introduced.

本文详细分析了逆变器输出的非线性特性及影响因素，重点对零电流夹断现象及其机理进行深入的研究，针对电流过零区间的非线性畸变提出了利用定子电流解耦以及电流矢量角度区间线性化的补偿方法。

In these first photos of the car's interior, we see a very clean design utilizing a two-tone thermo-coated dash and center console that matches the contrasting seats and headliner.

在这些第一的照片，这款车的内部，我们看到一个非常干净的设计，利用双色调热涂层破折号和中控台相匹配的对比席位和头条新闻。

In this paper, the study utilizing the waste heat of motorcycle engine was carried out for certain motorcycle.

本文针对国产某型摩托车，对利用其发动机排气余热取暖进行了研究。

A method of measuring static magnetic parameters of magnetic materials utilizing fluxgate sensor and Helmholtz coils is proposed for the first time.

首次提出应用磁通门传感器和亥姆霍兹线圈测量静态磁参数的方法，这种方法具有很好的技术先进性。

Plane strain, mode I quasi-static steady state crack growth is investigated utilizing the finite element method. It is once again established that TNT plasticity can significantly increase the stress level near the crack tip. The crack tip stress singularity is higher than or equal to the square-root singularity of elastic K field and is also independent of the plastic hardening exponent.

采用有限元方法研究了平面应变Ⅰ型准静态的稳态裂纹扩展，再次证实TNT非局部理论能够显著提高裂纹尖端附近的应力水平；裂尖应力场的奇异性超过或等于弹性K场平方根奇异性，而且与塑性硬化指数无关。

Two-dimensional seepage flow of free-surface over cutoff wall has been solved by conformal transformation method in this paper. By introducing the hodograph plane and utilizing Schwarz-Christoffel transform, the mapping relational formula between the physical plane Z and complex potential plane has been deduced.

对于越过截渗墙的剖面二维含自由面的渗流，应用保角变换方法求解，通过引入速度矢端平面和应用Schwarz－Christoffel变换，推导出了物理平面Z和复势平面的映射关系式。

The switch utilizing Hoer's domino effect has no crossing-dot,no abrasion and lower malfunction.

主要保护指标有：温度保护、烟雾保护、低速保护、撕带保护、皮带跑偏保护等。

Hollyhock is an important traditional flower of China. During the course of exploring and utilizing hollyhock, its abundant culture was accumulated and became an important part of traditional flower culture of China.

蜀葵是我国一种重要的传统花卉，在历代开发利用蜀葵的过程中，积淀了丰富的蜀葵文化，成为我国传统花卉文化的重要组成部分。

Methods A κ-carrageenan-degrading bacterium AJ5, capable of utilizing κ-carra-geenan as sole source of carbon and energy, was isolated from the intestine of holothurian Apostichopus japonicus by enrichment culture technique.

通过富集培养技术从刺参肠道分离出一株卡拉胶降解菌AJ5，该菌株能利用卡拉胶作为惟一碳源和能源。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。