level Four的例句大全

It is depicted the performance, characteristics and formation of PWM waveform of 3 level four quadrant converter. A systematic microcomputer control scheme is proposed, and the mathematical model established. Also included is the simulation waveform.

阐述了三点式四象限变流器的性能、特点及PWM调制波的形成，提出了系统的微机控制方案，建立了系统的数学模型，最后给出了仿真波形。

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Level Four alert! They're leaving in five minutes.

四级警报！五分钟之内离开。

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At tonight's meeting, he's graduated to level four, meaning he's able to put ladies first.

在今晚的聚会上，他己晋升至第四级了，意思是说他已经能够做到女士优先了。

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The Dow had traded above that level four other times in the past two weeks.

道琼斯平均指数在过去两个星期交易有四次在此水平之上。

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Japan's nuclear safety agency has estimated the accident at Fukushima at level four.

日本的核安全机构估计第四级在福岛事故。

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At the sophomore level, students begin four years of study in landscape architectural design.

在大学二年级水平，学生们开始在景观建筑设计四年的学习。

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After four sets and ten games in the final game the two players are still level pegging.

两位选手经过四轮十场比赛的较量，在最后一场比赛中仍然势均力敌。

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Compared with three-level atomic system, the atomic coherence effects in four-level can lead to EIT and EIA, which depend on the intensity of control light and the relaxation of the fourth level.

与三能级原子系统相比，四能级原子相干效应即可导致电磁感应透明的产生，也可产生电磁感应吸收现象，取决于控制光的强度和第四个能级衰变率的大小。

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The experiment simulated the flow and water level information transmission rule of three subbasin network by using four model, and found the best model: transinformation-distance model.

利用四个模型对三个实验子流域的站点之间流量信息和水位信息的传输规律进行模拟，对比发现最佳模型为互信息距离模型。

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By the end of this four level two "Shanghai Trilogy" for the multi-angle comparison to radiation from the two Chinese films in the film and even the interpretation of Shanghai and Shanghai on image building, the development of modern Shanghai image Revelatory meaning.

最终通过在此四个层面上对两部上海三部曲进行的多角度比较，从而辐射至两地电影甚至整个华语电影中对上海的解读与上海影像的构建，对上海本土电影的发展具有启示性意义。

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This paper introduces Hong Kong Public Libraries' Multimedia Information System from mainly four aspects: three-level structure, network structure, workstation management and data processing.

介绍了香港公共图书馆多媒体资讯系统的资源服务体系、网络体系、工作站管理和数据加工。

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Combine the current situation of task at the basic level in local police station: making the thought of four catches and four improvements run through the basic-level construction of police station is significant for improving the working level and actual ability of police station.

结合派出所基层基础工作现状，把四抓四提高的工作思路贯穿到派出所基层建设上来，对于提高派出所的工作水平和实战能力具有重要意义。

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Reasons for Supplementing Four-level Nursing System Standard and Its Contents

提出增补《分级护理制度标准》的原因及内容探讨

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The Ford-driving Finn began the season with four consecutive podium finishes and will be anxious to rekindle that level of performance in Argentina as he bids to get his title bid back on track.

这位福特车队的芬兰车手在本赛季初的四站比赛中都登上了领奖台，而他也可能对阿根廷站的冠军发起有力的挑战，他也渴望藉此机会重回总冠军的争夺。

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The four countries agreed to hold a ministerial-level meeting later this year to come to an agreement.

这四个国家同意今年晚些时候举行一个部长级会议以便达成协议。

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In this paper, the four-energy-level coupling transition is calculated by means of the matrix equation, the result is obtained that the probability of the absorbing process of the three-photon and the cube of the intensity are in the direct rate;

本文应用密度矩阵方程对四能级耦合跃迁进行了计算，得出了三光子吸收过程所占的几率与光强的三次方成正比的具体结果；

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The four-level algorithm given in this paper is a hierarchical algorithm which is developed from the three-level costate prediction method of Hassan-Singh for solving large-scale non-linear dynamical system problems.

本文提出的四级算法是一种由Hassan-Singh的三级共态（？）法发展起来的、解大规模非线性动态系统问题的递阶算法。

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The four-energy-level velocity rate equation is illustrated and so is the expression of threshold power. The laser power on the condition of near-threshhold and powerful pumping is estimated.

由钕离子的四能级跃迁的速率方程理论，推出了阈值功率的表达式，并且对近阈值条件下和强泵浦条件下的激光输出功率做了理论预测；

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Through the convey on the basic-level criminal investigating forces, it is easily found that there exists four main problems, i.e., shortage of police forces, weak security of police affairs, heavy pressure on police, and low quality.

调查基层刑侦队伍现状，不难发现当前基层刑侦队伍建设中存在的四个主要问题：警力数量偏小、警务保障偏弱、民警压力偏重、整体素质偏低。

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A four point bending device was used to investigate the effect of stretching on osteoblasts collagen production. Cells were stretched with different strain level and loading time.

使用四点弯曲加载装置研究机械拉伸对成骨细胞胶原合成的影响，在生理应变范围（500～1500με）研究了不同加载时间、不同应变水平对成骨细胞胶原合成的影响。

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