美国空军准备购买100多架涡轮螺旋桨飞机，海军现在正评估巴西航空工业公司的“超级巨嘴鸟”。
The American air force plans to buy more than 100 turboprops and the navy is now evaluating the Super Tucano, made by Embraer, a Brazilian firm.
美国空军计划购买100多架涡轮螺旋桨飞机，海军目前正在对巴西航空工业公司研制的“超级巨嘴鸟”(Super Tu cano)飞机做出评估。
America's air force plans to buy more than 100 turboprops and the navy is evaluating the Super Tucano, made by Embraer of Brazil.
已经灭绝了6500万年之久的菊石是一种带有多室螺旋状外壳的海洋头足类动物，其小室之间的阻隔即缝合线就是一种复杂的分形曲线。
Extinct for 65 million years, ammonites were Marine cephalopods that built chambered spiral shells. The walls between these Chambers, called sutures, were complex fractal curves.
多排螺旋CT使用过程中病人的连续螺旋运动，通过辐射光束8，16，64或更多的探测器，在一个较短的考试时间获得更精细的细节图像。
Spiral Multi-detector CT uses 8, 16, 64 or more detectors during continuous motion of the patient through the radiation beam to obtain much finer detail images in a shorter exam time.
芝加哥消息——即使对于可疑脑梗死这样的适应症，医生也应该注意到检查过程中多排螺旋CT相关的辐射剂量问题。
CHICAGO - Even for indications as serious as suspected stroke, doctors should be aware of the radiation doses being delivered with the multiple ct exams typically delivered during the course of care.
提出了在波动理论下螺旋弹簧多参数的应用方法及悬架高频响应的模拟方法。
It is concluded with the application method of helical spring parameters and the simulation method of high frequency response of suspension in wave theory.
方法分析37例髋臼骨折多层螺旋CT容积再现（VR）及多平面重建（ MPR）的影像特点。
Methods The feature of CT findings on MPR and VR were analyzed in 37 cases with acetabular fractures.
经过两年多的紧密筹备，7日下午，单引擎涡轮螺旋桨飞机TMB700从北京首都国际机场启航。
After two years of careful preparation, the single-engine turboprop TMB700 aircraft left Beijing Capital International Airport Sunday afternoon.
方法：对16层多排螺旋CT的机器结构、图像重建方法、扫描功能、设备自制功能等方面展开研究。
Methods The research is carried out through such aspects as the machine structure, image reconstruction method, scanning function, equipment self-restraint function of 16 slices multi-row spiral CT.
我已做相当多的研究螺旋桨，这是未来主要的事，我的工作。
I have been doing quite a bit of research on propellers as that is the next main thing for me to work on.
笔者将数学规划理论与计算机程序设计方法相结合，通过实例对多股螺旋弹簧的计算机辅助优化设计进行了初步探讨。
The disquisition pilot study about the computer assisted optimization design of a screw spring of many radices using math layout theory conjoint to computer programmer method with a exemplity.
目的：探讨螺旋ct表面遮盖显示(简称ssd)和多平面重建术(简称MPR)在骨关节创伤中的临床应用价值。
Objective: To evaluate the usefulness of SSD and MPR technique with spiral ct in bone and joint trauma.
它采用液力偶合器、可拆式刮板链条、气动卸料闸门以及多弹簧缓冲的螺旋张紧装置等新技术、新结构。
New technology and new construction, such as hydraulic coupling, dismountable scraper chain, pneumatic discharge gate valve and screw tensioning device with multi-spring buffer are used.
根据单点切削力模型，考虑平头立铣刀多刃和具有螺旋角的特点，建立了铣削力离散模型。
Considering the features of multi-edges and helix flutes for end milling, a cutting force discrete model base on single point cutting tools model was built.
结果26例经手术证实的宫内节育环异位，利用多层螺旋CT多平面重组技术能做出正确诊断。
Results For 26 patients with surgically confirmed ectopic intrauterine contraceptive ring, the use of spiral ct MPR technology can make the correct diagnosis.
该文就彩色多谱勒超声检测螺旋动脉在妇产科的应用作一综述。
In this review, we summarized application of color Doppler ultrasonography in detection of spiral artery.
按照多股螺旋弹簧的振动位移特性，以多股螺旋弹簧动态工作过程的并圈作为边界条件进行动态设计计算。
According to the vibration displacement performance, the exceed extrusion in the dynamic working process of the spring is employed as the constraint for the dynamic design and calculation.
目的探讨多螺旋CT后处理技术在肩胛骨折中的应用价值。
Objective To evaluate multi - slice helical ct postprocessing technique in scapular fracture.
目的探讨多排螺旋CT对急性肺血栓栓塞(PE)的诊断价值。
Objective to investigate the role of multi-detector spiral ct in diagnosis of acute pulmonary embolism (PE).
目的探讨利用螺旋ct多期增强检查，结合多平面重建对胃肿瘤的诊断价值。
Objective to discuss the diagnostic value of stomach tumors with multiphase contrast-enhanced spiral ct scan and multi-planar reconstruction.
本文主要介绍多排螺旋CT图像质量评价主要参数以及每种参数的主要影响因素。
This paper mainly introduced the important parameters for image quality of Multislice ct. The influencing factors of these parameters were also discussed.
首先确定多股螺旋弹簧的虚拟质量，建立了多股螺旋弹簧的动态模型。
The virtual mass of the spring was brought out firstly and the dynamic model was established sequentially.
茎有时分枝，通常螺旋扭曲，多叶，很少无茎的植株的。
Stems sometimes branched, usually spirally twisted, leafy, rarely plants stemless.
分析了多排螺旋CT管球对热容量的要求以及其剂量效率的变化。
The demand of tube thermal capacity and the change of dose efficiency of MDCT have been analyzed.
目的：探讨多排螺旋CTA血管成像在下肢动脉血管疾病中的价值。
Objective: To detect the value of multi-slice spiral CT angiography (CTA) in lower extremity artery.
目的探讨多排螺旋CT (MDCT)显示镫骨精细结构的最佳扫描及成像参数组合。
Objective to investigate the best parameters of scanning in showing the normal stapes with multidetector ct (MDCT).
目的：探讨多排螺旋ct及其重建技术在外伤性髋关节脱位中的临床应用价值。
Purpose: To study the clinical application value of MDCT and reconstruction in the traumatic hip joint dislocation.
前言：目的：探讨螺旋CT多平面重建技术在临床诊断中的价值。
Objective: to probe into the value of spiral ct multiplane reformation (MPR) in clinical diagnosis.
建议在多工况船的螺旋桨设计中采用二档变转速推进方式。
Therefore, it is recommended to adopt the two-step change-speed propeller in the tug design.
目的回顾性分析螺旋CT多平面重建（MPR）在先天性肾异常的临床应用价值。
Objective To retrospectively analyze the application of multi-plane reconstruction(MPR) with spiral CT to the diagnosis of congenital nephrotic abnormality.
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