查询词典 be in power

With the support of a major research grant of Zhejiang Province (No. 001101027) and the Plan of Promoting Education of Excellence of Zhejiang University in the 21st Century, this dissertation is devoted to address the above problems and fabricate an L-band EDFA with low cost, high performance and technological innovation.First the mechanism of an erbium doped fiber amplifier is introduced. Various theoretical models based on classical rate propagation equations are summarized and compared for their applications. We use a modified numerical model based on the Giles model, which agrees with the experimental results well. This serves as the theoretical base for the whole thesis and will be used to optimize the characteristics of EDFAs. A novel method based on a map of noise figure and gain is proposed to analyze efficiently the dependence of the noise figure and gain for EDFAs on the EDF length and the pump power. The characteristics of various EDFAs are studied and compared.Secondly, some important parameters are introduced to describe the characteristics of EDFAs. The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized. We introduce how to measure the characteristics of each component of an EDFA, especially the gain and absorption coefficient of an erbium doped fiber.Thirdly, four types of simple and novel L-band EDFA structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a DWDM system. They can be classified into two categories. In the first category, a single ASE pumping is served asa secondary pump. This category includes the following three types. Type: a new construction using a fiber Bragg grating in an unpumped EDF section at the input side. Type: a new structure of L-Band EDFA with two-stage pumps, which utilizes the forward ASE as a second pump.

本论文本着科技创新、服务于生产实践的精神，以设计价格低廉，性能优越、结构合理简单的L-band EDFA为目标，依托浙江省科技厅重大科学基金资助项目(001101027)和浙江大学振兴教育计划资助的全光网络的搭建—《光通信技术》课程实验建设项目，展开了如下工作：首先，介绍了掺铒光纤放大器的工作原理，归纳总结了基于速率方程基础的EDFA的各种理论模型，分析比较了各个模型的特点和适用场合，最终选择完善的Giles理论模型作为本论文分析设计EDFA的理论基础；针对实际实验条件提出了修正的EDFA模型的数值计算方法；创新地提出了增益—噪声系数全局分析法，直观有效地分析了EDFA的增益和噪声系数与掺铒光纤长度和泵浦功率的依赖关系，并对各种EDFA的性能作了全面的比较；第二，介绍了掺铒光纤放大器特性参数的定义与测量方法，重点介绍了噪声系数和增益系数的测量方法及实验装置；介绍了组成掺铒光纤放大器各组件的特性测量方法，重点介绍了测量掺铒光纤参数的方法和实验装置；第三，针对WDM系统对L-band EDFA谱平坦、低噪声、高增益的要求，我们创新地提出了四种不同的L-band EDFA结构，按设计思路可以分为两大类：一类是基于单抽运二级泵浦法，这一类包括在未泵浦掺铒光纤的输入端插入一根布拉格光纤光栅的两段L-band的EDFA的新结构；基于前向ASE光作为二级泵浦源推动下一级EDF工作的泵浦分配、两段级联L-band的EDFA的新结构；基于单根光纤光栅、泵浦分配、两段级联的EDFA；另一类则是基于同时应用前后向C-band ASE作二级泵浦源的双抽运法，如基于前后向ASE光作为二级泵浦源的三段级联L-band的EDFA的新结构。

There is power in intention and strength in numbers, but you will be unable to achieve either unless you are able to convey what is, and what needs to be done, to those who are ready to listen and to make common cause with you.

你有权作出决定也有力量做很多事，但你必须告诉那些愿意倾听并与你有共同事业的人你的决定是什么，以及需要做什么，否则一切都将无法实现。

"SECTION III. And though we well know that this Assembly, elected by the people for the ordinary purposes of legislation only, have no power to restrain the acts of succeeding Assemblies, constituted with powers equal to our own, and that therefore to declare this act irrevocable would be of no effect in law; yet we are free to declare, and do declare, that the rights hereby asserted are of the natural rights of mankind, and that if any act shall be hereafter passed to repeal the present or to narrow its operation, such act will be an infringement of natural right."

III。我们非常清楚，这个议会，仅仅是人们为着普通立法目的而选举的，没有权力限制以后与我们同等的议会所立的法案，因而宣称这个法案的不可变更在法律上是无效的；然而我们还是自由的宣布，并且必须宣布：我们在这里主张的权利是人类自然的权利，如果以后通过的任何法案欲否定或者限制这些权利，这样的法案将是对人类自然权利的侵犯。

Psychic powers and extra-sensory perception rank among the top ten unexplained phenomena if for no other reason than that belief in them is so widespread. Many people believe that intuition is a form of psychic power, a way of accessing arcane or special knowledge about the world or the future. Researchers have tested people who claim to have psychic powers, though the results under controlled scientific conditions have so far been negative or ambiguous. Some have argued that psychic powers cannot be tested, or for some reason diminish in the presence of skeptics or scientists. If this is true, science will never be able to prove or disprove the existence of psychic powers

对灵力和超感知觉的信仰流布甚广，就凭这一点，这两样东西也应该进入十大未解之谜的行列许多人相信，直觉就是灵力的一种表现形式、一种获取有关世界或未来的特异知识的方法研究人员已经对一些自称拥有灵力的人进行了测试，但是迄今为止，他们在受控实验室条件下得到的都还是否定或含糊的结果有些人辩称灵力不可测试，因为它会因怀疑论者或科学家的在场而莫名其妙地减弱如果这是真的，科学就永远无法证明或驳斥灵力的存在

Using electric operation controlled lifting system so that the floating plate safe, stable, powerful stress job to ensure that the molding, simpler and quicker. 2 strong suction system without phase vacuum suction, negative pressure may have been the ideal state, the use of more convenient. 3 equipment, power can achieve the best working state of the lowest electricity consumption standards. 4 soften me with automatic temperature control system can be made under different heating plate settings required. 5 operating system, the use of numerical control system to operate, effective improve the efficiency of the operator. 6 advanced technology can be a cooling suction pressure molding, may also be under the light box, the different effects of the word alone or in a separate suction pressure, so that light boxes, forming a word.

产品特点：1。采用电操作控升降系统，使浮动板安全，平稳，工作压力强大，确保成型更简便，快捷。2 吸气系统功能强劲，无需阶段吸真空，可一直处于理想负压状态，使用更方便。3 设备功率可达到最佳工作状态的最低电耗标准。4 软化箱装有自动恒温控制系统，可根据板材不同的加温需要设定。5 操作系统采用数控系统操作，有效的提高了操作人员的工作效率。6 技术先进，可吸压冷却一次成型，也可根据灯箱，字的不同效果，单独吸或单独压，使灯箱，字一次成型。

Rising above such cavilling and paying up would be a small step in itself. But it would be a sign that the Middle Kingdom has understood what it is to be a great power.

超越这种挑剔的心态以及支付份额费用本身只是一个小小的进步，但这将显示出中国已经理解了成为大国意味着什么。

Rising above such cavilling and paying up would be a small step in itself. But it would be a sign that the Middle Kingdom has understood what it is to be a great power.

中国摆脱这样的对抗的情绪或许只是中国的一小步，可是对于世界来说中国懂得了如何做一个大国就是一大步。

Rising above such cavilling and paying up would be a small step in itself. But it would be a sign that the Middle Kingdom has understood what it is to be a great power .

从本质上来说，超越这些心理阻碍并向国家货币基金组织提供全额资金对中国来说只是迈出了一小步，但这一小步将可能彰显中国对如何做一个强国已经了然于心。

Article 50 If any person working with a State organ, by taking advantage of his/her power and position, shelters or connives at the manufacture or the sale of products listed in Article 20 of the present Regulations, he/she shall be given administrative punishment by his/her unit or by the authority at a higher level, in case of a criminal offence being involved, the offender shall be investigated for criminal responsibility according to the laws.

第五十条国家工作人员利用职权，包庇、纵容生产、销售本条例第二十条所列产品的，由所在单位或者上级机关给予行政处分；构成犯罪的，依法追究刑事责任。

These are issues that concern us today : the prevention of war; the protection of the environment; the balancing of population and resources; the management of energy so that we will neither exhaust our resources with unbridled growth nor contaminate the environment; the distribution of resources among nations and groups who have been differently dowered in the past by nature and history; the humanization of technology so that technology can be used for human ends and not primarily for profit or for power; the replanning of towns and cities so that neighborhoods can again be a microcosm of three-generational wholeness of life; the creation of transcendental values that will no longer set members of one religion against another, or of one ideology against another, so that all human beings can move in new ways without being traitors to the old.

这些是今日和我们息息相关德问题：防止战争；保护环境；人口与资源的平衡；资源管理，以免人口激增而耗尽资源和污染环境；国家团体之间的资源分配，它们过去由于自然和历史因素而分配不均；科技的人性化，使科技能应用在人性化的目的上，而非只用于利益或权力之上；重新规划乡镇和都市，让邻里之间能够再度成为一个三代同堂、生活完整的小天地；创造超越性的价值观念，使得某个宗教信仰或是某个思想体系的人不在敌视异己，人们也就都无需为新弃旧。

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！