多级的

In addition, some experience formulas for them are regressed. The third chapter establishes a unified S-N curve equation to calculate multi-axial fatigue ultimate strength of concrete considering both the effect of confinement and minimum/maximum stress ratio, based on the triaxial fatigue test data in this paper and the test results under uniaxial and biaxial fatigue loading in previous literatures. Moreover, the consistency of calculating condition fatigue ultimate strength with fatigue life distribution and initial ultimate strength distribution is analyzed.

第二章简要地介绍了本文三轴疲劳试验装置，进行了两向等侧压约束下混凝土立方体试件三轴受压等幅和变幅疲劳试验，分析了三轴受压疲劳破坏机理，给出了相应的疲劳破坏试验判断标准；得到了混凝土在两向侧压约束下单级和多级受压疲劳的变形发展规律，包括最大纵向应变、残余应变、最大纵向应变率和疲劳变形模量等随循环次数的发展规律以及疲劳损伤的演变规律，并给出了相应的经验公式。

The dissertation describes several traffic models for VTPOS, as well as analyzes and simulates the Characters of multiplexing, immerging, shaping of traffic, especially focuses on the Self-similarity traffic's influence to the buffer overflow and queue delay at E-OS.

本文根据光网络的特点，研究了在特定网络结构下，波长转换的合理配置问题；业务量网络分布下的最短路由优化方法，多级光网络下的逻辑拓扑；网络的偏转路由调度等，并对调度性能进行了必要的分析和仿真。

According to the objective and requirement of Army Command Control Information System and the change of position of Army in current war fare and the application requirement of distributed operation environment of staff transferring from high level to lower level command post,this paper describes the architecture of the Army Command Control Information System from the view of operation architecture and system architecture.

针对陆军指挥控制信息系统的目标和需求，及其在现代战争中地位的变化，适应多级指挥所多席位分布作战环境的应用需要，从作战体系结构和系统体系结构两个方面对陆军指挥控制系统的体系结构进行描述，并且对该系统实现的总体功能、作战信息流程、工作模式和系统应用集成等方面进行设计。

Horizontal contraposition multistage piston compressor, designed in accordance with API standard, leads the trend of compressor field. Its advantages of unvibrating operating and durable using structure 、 continuous working and natural cooling attract more and more compressor users. In addition, that it can be wholly skid mounted makes transportation, installation and maintenance more convenient, that alters the traditional demanding for installation.

依据 API 标准设计的水平对置多级活塞压缩机代表着压缩机领域的潮流，其以无振动运转、平稳耐用的结构，持续工作及自然风冷的特点越来越被压缩机使用者所青睐，特别是它整体撬装使运输安装和维护更方便快捷，改变了传统的对安装基础的要求。

Firstly, this paper puts forward an improved authentication and key distribution scheme for internet environment, in which we adhibit multilevel authentication center, encryption technology of DES, RSA and one-way function to actualize the safety of communication among the different user on network and reduces the workload of the authentication institution; at the same time, this scheme can also assure the security of network. Besides, it use the temporary symbol and the responds" sign of both-side correspondent to replace time stamp and applies them to internet communication to countercheck "rebroadcast attack and accordingly resolves the problem that it needs synchronization for network clock.

本文在首先提出一种改进的Internet网络环境下的认证及密钥分配方案，该方案考虑采用了多级认证中心，DES、RSA和单向函数加密机制，实现了网络上不同用户间的安全通信，降低了网上认证机构的工作量，同时也能够保证网络的安全性；并用通信双方的临时标志和响应者标识来代替时间戳应用于Internet通信中以防止"重播"攻击，从而解决了以往需要网络时钟同步这一难题。

Polynomial fitting was used to map out the pressure distribution curve of numerica...

与通过试验数据计算出的结果相比，数值模拟计算出来的轴向力相对误差在9%以内，而经验公式计算的轴向力相对误差为14%，采用数值模拟方法计算轴向力具有更高的精度，对多级离心泵轴向力平衡的研究具有指导意义。

The embedded coding is introduced in order to control the data rate accurately, then the principle of EZWis analyzed. The priciples of the improved algorithms such as SPIHT(Set Partitioning in Hierarchical Trees), SPECK(Set Partitioned Embedded Block Coder)are discussed then.

为了实现视频图像传输码率的精确控制，介绍了嵌入式编码的概念，分析了嵌入式零树小波编码算法，讨论了两个基于EZW算法的改进方案，即多级树集合分裂算法和集合分裂嵌入块编码，对这些算法的原理和编码结果进行了比较和讨论。

Although a formal assessment of professional functioningafter a perioperative catastrophe has not been done, the Associationof Anaesthetists of Great Britain and Ireland instituted guidelinesrecommending support at multiple levels, and the "Adverse EventProtocol" available on the Anesthesia Patient Safety Foundationwebsite provides a suggested series of steps to minimize patientinjury and identify the cause of an adverse anesthesia eventafter it occurs.

即使围术期灾祸后专业功能的正式评估还未进行，英国和爱尔兰麻醉医师协会指定了推荐多级支援的指南，而在麻醉病人安全基础网站上的可用的&不利事件记录&提供了一系列步骤，以使患者损伤降到最低并在发生不良麻醉事件后鉴定其原因。

The article describes the reasonable configurations on the photovoltaic cell s for the solar power system in telecommunications and the influence to the system reliability and cost.

叙述了通信用大阳能供电系统光伏电池的合理配置，对系统的可靠性和经济性的影响，并对多级分组投入和稳压变换式两种供电系统光伏电池配置的特点进行了分析比较。

In addition, the detailed introduction is given on the endstation of atomic and molecular physics. The formative mechanism of molecular beam is discussed. The theory of time of flight mass spectrometry and multi-photoionization chamber are also discussed in this chapter. Last, the method of data acquisition is described.

另外，对原子分子物理实验站作了具体介绍，讨论了分子束的形成机理、飞行时间质谱仪的设计原理及多级光电离室的原理和结构，给出了该实验站仪器配备情况，并简要介绍了该实验站配套的数据采集方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。