1)α-hullα-壳
1.Analyzing Efficiency of Datum Deleting of α-hull in Evaluation of Roundness Error圆度误差评定中α-壳的删点效率分析
2.An α-hull,a conception in the field of computational geometry,is adopted in roundness evaluation,based on which a theorem and an algorithm are presented for culling t.将计算几何中α-壳的概念应用于圆度误差评定过程中;提出了一种在保证评定结果正确的前提下圆度评定中无关点的删除准则和删除算法;实验证明,本文提出的方法可有效删除圆度评定过程中的无关点。
3.α-hulls are applied to calculate the minimum circumscribed circle(MCC) of point set and an accurate and effective method for MCC detection is established through finding the least squares circle of the point set and iteratively approaching the MCC with recursive subdivision.为实现点集最小包容圆(最小外接圆)的求解,将计算几何中的α-壳的概念应用到最小包容圆的计算过程,提出了一种精确有效的最小包容圆求解算法。
英文短句/例句
1.Analyzing Efficiency of Datum Deleting of α-hull in Evaluation of Roundness Error圆度误差评定中α-壳的删点效率分析
2.Preparation and Catalytic Activity of Egg-Shelled Catalyst Pd/α-Al_2O_3蛋壳型Pd/α-Al_2O_3催化剂的制备及活性
3.Characteristics of immobilized α-amylase on chitosan nano-particles壳聚糖纳米胶囊固定化α-淀粉酶及其特性的研究
4.-methylbenzyl etherα－甲基苄基醚 α
5.oval shape case卵形壳, 蛋形表壳
6.Alpha-Beta pruningα-β修剪,α-β剪枝法
7.-ketoglutarate pathwayα－酮戊二酸途径 α
8.-ketoglutarate dehydrogenaseα－酮戊二酸脱氢酶 α
9.On the Sum of a Prime Power and Two Powers of an Integer;关于形如α～k＋α～l＋p～α的整数研究
10.Synthesis and Studies on the Conformation of α,α,α'-trisubstituted Cyclododecanone;α,α,α'-三取代环十二酮的合成与构象研究
11.styrene dibromideα,β-二溴乙基苯
12.styrene dichlorideα,β-二氯乙基苯
13.The Formulat of α-α Scattering Amplitude and the α-～(12)C 、α-～(16)O Scattering in the Intermediate and High Energies Range;α-α散射振幅及中高能α-～（12）C、α-～（16）O散射的研究
14.To shed or cast off(a covering.脱壳脱或蜕去（壳或皮）
15.(biology) relating to or possessing a test or testa.（生）与介壳有关或有介壳。
16.having a hard shell or shell-like covering.有硬壳或壳状遮盖物。
17.water-tight case不透水外壳, 耐水外壳
18.as the basic form of the crust of the earth,看作地壳的基本模壳，
相关短句/例句
α-chitosanα-壳聚糖
1.Comparative Research on the Immobilization of Saccharifying Enzyme by Using Four Kinds of α-chitosan as Carriers;4种α-壳聚糖载体固定化糖化酶的比较研究
3)globle α-chitosan球形α-壳聚糖
4)chitosan alpha-ketoglutaric acidα-酮戊二酸缩壳聚糖
1.The magnetic Fe3O4/carboxyl functional chitosan composite nanoparticles have been prepared by the covalent binding of chitosan alpha-ketoglutaric acid(KCTS) onto the surface of Fe3O4 magnetic nanoparticles via carbodiimide activation.以磁性Fe3O4为核,通过反相悬浮聚合法对Fe3O4颗粒表面进行改性,在碳二亚胺的活化作用下,与壳聚糖衍生物-α-酮戊二酸缩壳聚糖(KCTS)反应制备了表面含有一定羧基的磁性Fe3O4/KCTS纳米粒子。
5)alpha[英]['?lf?][美]['?lf?]α
6)shell[英][?el][美][??l]壳
1.Degenarated Isoparametric Shell Element for Laminated Composite Plates and Shells;用于复合材料板、壳结构的退化的等参壳元
2.Finite strip method for materially nonlinear analysis of reinforced concrete slabs and shells;钢筋混凝土板壳材料非线性分析的有限条法
3.Applying degenerate isoparametric element, this paper has studied geometrical nonlinear response of composite plates and shells.本文采用退化的等参壳元分析了复合材料板、壳结构的几何非线性特性。
延伸阅读
α,α,α,α',α',α'-六氯对二甲苯分子式：C8H4Cl6分子量：312.84CAS号：68-36-0性质：白色针状或粉末状结晶。熔点108-110℃。溶于二甲苯、石油醚、乙醇、植物油，不溶于水。无味，有特殊臭味，遇光、碱会缓慢分解而呈酸性。制备方法：以混二甲苯为原料，先用98%硫酸磺化，使间二甲苯生成间二甲苯磺酸盐。从磺化反应物中分离出含邻、对二甲苯的油层，水洗、干燥，减压蒸馏出邻、对二甲苯。间二甲苯磺酸盐经水解可得副产品间二甲苯。由邻、对二甲苯经氯化即得1，4-双（三氯甲基）苯：在反应锅中投入邻、对二甲苯，再加入过氧化苯甲酰和三乙醇胺。加热到70℃后，在光照射下导入氯气，于70-80℃反应6h，再升温至100-120℃继续反应，至反应液相对密度达到1.560-1.580（65℃），即为反应终点，停止通氯，减压脱除余氯。降温至5℃，过滤，洗涤得粗品，重结晶，活性炭脱色得成品。用途：抗血吸虫病药物。对肝吸虫病、阿米巴原虫病、疟疾以及肠道线虫有一定疗效。但对神经系统的不良反应较多见，且延迟反应持续较久。
