四套

And as to their appearance, all four were alike: as if a wheel were in the midst of a wheel.

轮子的外表，四个都有同样的形状，好像轮子套在轮子中。

Developed two computer software namedSEMA and MMEA, which can calculate the single line mooring force and thestiffness matrix of the whole mooring system. And use these softwares to compute theforce-excursion relationship of a four lines moored Spar platform in different intialhorizontal force conditions, shown the influences of the intial horizontal force to themooring stiffness. 3. The Spar can be simplified as a large diameter, truncated cylinder, we focus onthe diffraction problem in bichromatic incident waves, and the boundary integralequation method is applied.

按照上述理论和方法编制了计算单根系泊索系泊力的SEMA程序和计算系泊刚度的MMEA程序，并利用这两套程序，在不同预张力的初始条件下，对一座四索系泊Spar平台的系泊系统进行了分析，揭示了Spar平台整体系泊力随位移变化的规律， 3、将Spar平台主体简化为大尺度的直立浮动圆柱体，对双频入射波作用下平台主体的绕射问题进行了深入的理论研究，并且采用边界积分方程法，对二阶差频波浪力进行了求解。

Japanese astronaut Koichi Wakata returned home after staying in a space station for 4 1/2 months. During the last 30 days, he wore the same experimental high-tech undies and socks.

日本太空人若田光一这次在一个太空站停留了四个半月，其中最后30天，他都穿同一套实验性的高科技内衣裤和袜子。

Ten years later we have an new apartment with four bedrooms and two living rooms. But wife always nags that someone got married two years later than us but lives in a villadom.

十年后，我们有了一套四室两厅的新房，但老婆总唠叨说某某比我们迟结婚两年，都住上了复式结构的小别墅。

This subject introduces a kind of nc dc voltage stabilizer, the power supply, by simulation showed circuit, control circuit and digital-to-analog circuit, amplifying circuit four parts, mainly is a set of singlechip intelligent dc power supply.

本课题将介绍一种数控直流稳压电源，该电源由模拟电源、显示电路、控制电路、数模转换电路、放大电路四部分组成，主要是一套以单片机为核心的智能化直流电源。

Ours is aflat of four rooms.

我们的住房是四件套一间的住房。

Using the hanging drop method, good crystals of maltotetraose-forming amylase isolated from culture of Alcaligenes sp have been grown. Diffraction density data to 2.7? resolution were collected on a Mar Research Image Plate Detector System.

用悬滴汽相扩散法生长了从产碱菌中分离纯化得到的麦芽四糖淀粉酶的晶体，并在MarRe search面探测器上收集了一套2.7埃分辨率的衍射强度数据。

3To introduce a minimally-invasive technique of a new percutanous external spinal fixation assistanted minimally-invasive surgical procedure treating thoralumbar fracture and analyse its clinic applicable area and value. [1]According to advantage of spine external transpedicular fixation technique and limitation of traditional percutanous external transpedicular fixation,design a new percutanous external transpedicular fixation.

(1)根据脊柱外固定技术的优点，传统脊柱外固定器的不足自行研制一套新型脊柱外固定器(WS-1型)；(2)取7具新鲜小牛腰椎标本，自制实验不稳定性骨折模型，把实验分成正常A组、骨折模型B组、新型脊柱外固定器固定C组、新型脊柱外固定器固定联合PVP技术D组，分别按顺序测试四组的三维稳定性，并测试A组、C组与D组在300N轴向压缩实验，再行统计学分析比较；(3)应用新型脊柱外固定器联合椎间盘镜微创椎管减压技术和PVP技术手术治疗胸腰椎骨折，病例选择：本组病例共69例，年龄自10岁-70岁，平均年龄56.3岁。

Yangzi Petrochemical company to my company by-product of heavy aromatics C10 as the main raw material, with an annual output of 80,000 tons of high boiling point aromatic hydrocarbon solvent series production facilities and annual output of 2000 tons Durene isomerization a production device, is currently the largest , the most technologically advanced processing enterprises C10 aromatics.

我公司以扬子石化公司副产品重芳烃C10为主要原料，拥有年产8万吨高沸点芳烃系列溶剂生产装置和年产2000吨均四甲苯异构化生产装置各一套，是目前国内规模最大，技术最先进的C10芳烃加工企业。

Based on investigations of 40, 000 words, this dissertation discusses the subject from both a theoretical and a practical approach and puts forward a set of concrete and exercisable criteria of classification.

本文在四万词考察的基础上，讨论了词类划分的理论问题和词类划分中的种种实际问题，提出一套可操作的具体划分标准。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。