V的例句大全

By use of V notched round bars with different theoretical stress concentration factors as finite element models ( FEM) of tensile screw threads, stress intensity factors ( SIF) of surface cracks of screw threads are calculated.

将拉伸螺杆简化为理论应力集中系数Kt不同的带V形缺口圆杆，采用裂纹尖端为20节点奇异单元的三维有限元模型，对螺杆半椭圆表面裂纹的应力强度因子进行了计算。

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Under these conditions, 9.43% ( v/ v) ethanol were produced which was 91.0% of the glucose theoretical yield.

在此发酵条件下可从161%的糖液中得到943%（v/v）的酒精，达到葡萄糖理论转化率的910%。

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The C-V geometric active contour model is based on the theory of partial differential equations. The segmentation result which is globally optimal, continuous edge can be gained by using C-V model, and C-V model which has strongly noise immunity is the effective image segmentation method currently.

而C-V几何主动轮廓模型是基于偏微分方程的图像分割模型，该模型分割图像可以得到全局最优的、连续边缘的分割结果，具有较强的抗噪性，是目前比较有效的图像分割方法。

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Chapter V lays particular emphasis on the community informatization system and other institutional building of Jinan by the theory of process reengineering and analyzing specific issues case by case.

第五章是利用流程再造理论，具体问题具体分析，有侧重地研究济南市社区信息化体系和其他相关机制建设。

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Study on Technology of Metal Matrix Composites Prepared by V EPC Method Selection of Vacuum Pump and Capacity Calculation of Dust Separator in Lost Foam and V-process Casting

负压实型铸造法制备金属基复合材料的工艺研究消失模与V法铸造用真空泵的选型和负压罐的计算

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The packer and telescopic tube are designed to a whole body and V-shaped inflatable graphite sealing ring is used to form the sealing system, ensuring the sealing performance of.

它将封隔器与伸缩管设计成一体，采用V形膨胀石墨密封圈组成密封系统，确保伸缩管热力伸长时封隔器的密封性。

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A series of experimental Si-Mn series spring steel which has different vanadium content was smelt in laboratory by Fe-V or VN alloying. The penetration hardenability, temper resistance, surface decarbonization and mechanical properties of the test steel were studied.

分别采用VN、Fe-V合金在实验室冶炼了不同钒含量的Si-Mn系弹簧钢，并系统研究了其淬透性、抗回火稳定性、表面脱碳敏感性和力学性能的变化情况。

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Preparation of vanadium dioxide thin film with high temperature coefficient of resistance from V_2O_5 powder by ion beam enhanced deposition

用离子束增强沉积从V2O5粉末制备高热电阻温度系数VO2薄膜

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Study on Al-Fe-V-Si alloys high temperature deformation and flow stress

Al-Fe-V-Si耐热铝合金高温形变及流变应力研究

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Hot simulation of high temperature deformation Al-Fe-V-Si alloy

Al-Fe-V-Si合金高温变形热模拟

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The determination of compressibility factor_z, volumetric adiabatic exponent k_v and temperature adiabatic exponent k_t of real gases

实际气体压缩性系数z、容积绝热指数kυ和温度绝热指数k T的确定

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The equation of state, RKS, is chosen to evaluate the isentropic temperature change exponent k T and isentropic volume change exponent k v of real gases in this paper.

采用RKS状态方程计算实际气体等熵压缩过程的温度绝热指数和容积绝热指数。

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The results show that the electron temperature comes to a head in the channel under the gate, it will achieve 6223 K when the height of the pulse is-18 V. then it falls around gradually towards the lattice temperature ( 300 K).

结果表明，在器件的栅下靠近漏端一侧的沟道处电子温度最高，当栅脉冲电压为-18V时可达6223K，并且电子温度从最高点向四周逐渐降低最后与晶格温度（300K）达到一致。

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Study oxidation-reduction properties of pd-v oxides by temperature programmed reduction and reoxidation

用程序升温法研究Pd-Ⅴ氧化物催化剂的氧化还原性能

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We focus on reaction time, reaction temperature, ratio of V_ ( acid)/ V_ ( water) on distribution of particle size and media grain size.

我们重点考察了反应时间，反应温度，V酸/V水对晶种的粒度分布和平均粒径的影响。

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In this paper the temperature dependent of saturation magnetization of titanium-substituted lithium ferrites has been theoretically calculated, then microwave ferrite materials with excellent performance have been made through controlling Fe content, adding Ca and V, and annealing in high-pressure oxygen.

对钛置换锂铁氧体进行了理论计算，在此基础上通过控制Fe含量，添加Ca、V离子及高压氧气退火等工艺，制备出了性能优良的微波铁氧体材料。

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The special feature of the new testing method is that a cake-like sand test piece with V-shape groove on its surface is heated from bottom to top in a new-designed high temperature shock heating furnace.

新试验方法的特点是采用表面有V形沟槽的圆饼形型砂试件，在激热试验炉中受到自下而上的高温烘烤。

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Austenite grain growth behavior of Nb-V alloying non-quenched and tempered steel

Nb-V复合非调质钢奥氏体晶粒长大行为

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Quenching Hardness Calculation and Tempering Hardness Characteristic of Cr-W-Mo-V Medium-alloy Steel

Cr-W-Mo-V中合金钢的淬火硬度计算及其回火硬度特性

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The changes of quenching and tempering hardness and the microstructure transformation of four kinds of Cr-W-Mo-V medium-alloy steels were investigated.

研究了4种不同成分的Cr-W-Mo-V中合金钢的淬火硬度、回火硬度变化和组织结构转变。

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