The reality that led up to the president's monumental life change is the reality that faces more and more men and women every day: the seemingly unstoppable downward spiral of coronary heart disease.

Spiral CT: Renal Disease Applications

螺旋CT在肾脏疾病中的应用

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Pork and its products not only infect people in bacterium disease, but also viral disease, parasitic disease and spiral disease, which cause different symptoms, so strengthening the quarantine is especially important.

猪肉及其产品不但能传染给人细菌病，而且还能传染病毒病，侵袭寄生虫病和螺旋体病，引起不同症状，加强检疫尤其重要。

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The general situation, application features and technological and economic aspects of a new drying equipment composed of a double spiral dryer and a disc dryer are described.

介绍了新型干燥设备双螺旋干燥机和盘式干燥机结构及其应用情况。

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The Numerical Calculation of Mixing for Archimedes Spiral Mixing Disc

阿基米德螺线式混炼盘混炼效果的数值计算

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The use of the spiral groove of non-standard cutting tool by PRO/ E 3D software designed to simplify the basic principles and methods is presented, and processing done to the actual certification.

介绍了非标螺旋槽刀具采用PRO/E软件进行三维简化设计的基本原理及方法，并用实际加工进行验证。

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In view of the time varying property of a spiral bevel gear mill cutting system, a piecewise linear and time invariant modelling approach based on time series analysis is proposed in this paper.

为了提高弧齿锥齿轮加工精度和切齿效率，提出弧齿锥齿轮铣齿机切削系统的时序分时建模系统辨识方法。

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PRO/ E in Spiral Groove of Non-Standard Cutting Tool Design Applications

PRO/E在非标螺旋槽刀具设计中的应用

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These rolls are corrugated cylinders, usually of the spiral type. Cutting and Precision Form of Helical Vane of Shearer Drum

粉碎辊是波纹式滚筒，还常是螺旋割纹式。采煤机滚筒螺旋叶片的下料及辗压成形

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Objective To evaluate multi-slices spiral CT-guided percutaneous cutting needle biopsy in pulmonary nodules less than 3 cm in diameter.

目的评价多排螺旋CT引导下经皮肺切割针活检直径≤3cm肺结节的价值。

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The Research on NC Grinding Rake& Flank Faces of Ball-end Cutters with Spiral Shape Major Cutting Edge

数控磨削螺旋刃球头立铣刀前后刀面的研究不重磨硬质合金面铣刀

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The formulation of movement function and product platform and generalized structure model are founded for CNC spiral bevel gear cutting machine.

建立了数控弧齿铣齿机运动功能解析式、产品平台和广义结构模型。

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Model and Simulation for Numerical Control Machining of Heavy Duty Spiral Bevel Gear Cutting Machine

重型弧齿锥齿轮铣齿机数控加工模型建立与仿真

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Analysis of characteristics of load on a spiral drum in cutting

螺旋滚筒切削载荷特性的分析

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Study on the Design Mechanism of Spiral Paper-cutting Hobs

螺旋式切纸滚刀设计机理研究

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Processing Spiral Groove Cutting Tool Adjustment Parameter Iteration Algorithm

加工螺旋槽用盘形铣刀调整参数的迭代算法

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The paper introduces simulated annealing algorithm about its theory, model and realization process, by which model for performance and parameters of shearer spiral cutting drum is made optimally designed and calculated. The result shows that efficiency can be increased by 12.9972% than old design.

介绍了模拟退火算法的原理、模型和实现过程，采用该算法对采煤机螺旋滚筒装煤性能参数优化模型进行了优化设计计算，表明比原设计提高12.9972%，符合实际应用情况。

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By adopting spiral cutting instead of traditional barrel shaped cutting in the course of digging tunnels in the solid marble strata of Yinan Gold Mine, the blasting efficiency and result were improved besides the consumption of materials was lowered.

沂南金矿在较坚硬的大理岩层中掘进巷道时，采用螺旋掏槽替代传统的桶形掏槽，可改善爆破效果，提高爆破效率，降低材料单耗。

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At the same time restriction conditions, such as breaking model of coal wall, rotation speed of the spiral cutting drum, rise angle of the helical blade, and so on, and subjection functions were selected.

通过选取煤壁破碎模式、滚筒工作转速、叶片螺旋升角等作为约束条件，讨论了其隶属函数。

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4-bore spiral cutting blasting FEM model is built up by LS DYNA software and the process of spiral cutting blasting with different bore depth and different charging coefficients are simulated and analyzed.

采用LS-DYNA商用有限元程序建立了4孔掏槽爆破的有限元模型，模拟分析了不同孔深条件下不同装药系数时的爆破掏槽过程。

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The simulation results show that spiral cutting bore is the main influence factor of the effect of deep bore blasting and the results provide academic bases for the optimization design of spiral cutting bore.

计算结果表明掏槽孔是影响中深孔爆破效果的重要因素，并为优化掏槽孔设计方案提供了理论依据。

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