1)Radial variation径向变异
1.Totally 26 provenance stands of 17-year-old Pinus koraiensis were selected for investigating genetic variation in different provenances and the trend of radial variation of wood quality in the direction of cone to tree bark.对帽儿山地区 1 7年生 2 6个红松种源试验林进行了材质性状研究 ,主要包括材质性状在不同种源间遗传变异情况以及从髓心到树皮径向变异模式研究。
2.8% radial variation of the growth ring width were resulted by climate change from April of the previous year to September of the same year.应用响应函数分析方法研究了东北地区人工林红松生长轮宽度对月平均气温等气候因素变化的响应,结果表明:前一年4月到当年9月的气候变化对人工林红松生长轮宽度径向变异可产生40。
英文短句/例句
1.PRELIMINARY STUDIES ON RADIAL VARIATION PATTERNS OF WOOD PROPERTIES WITHIN TREES Ⅱ. STUDIES ON THE RADIAL VARIATION PATTERNS OF WOOD DENSITY IN 7 CARIBBEAN PINE PROVENANCES木材材性株内径向变异模式初探Ⅱ．七个加勒比松种源木材密度径向变异模式的研究
2.Radical Variation and Prediction Model of Wood Anatomical and Crystallinity of Young Dalbergia sissoo Plantation人工幼龄印度黄檀木材解剖性质和结晶度的径向变异及预测模型
3.Tracheid morphology characteristics and microfibrillar angle and their variation patterns of Larix gmelinii兴安落叶松管胞形态特征和微纤丝角及其径向变异的研究
4.Study on the Radial Variations of Growth Ring Width,Air-dried Wood Density and Fiber Length of Toona sinensis(A.Juss.)Roem.and Their Relativity香椿生长轮宽度·木材气干密度·纤维长度径向变异及其相关性研究
5.Horizontal variations in ring width and tracheid length of Pinus sylvestris var. mongolica in Zhanggutai章古台地区樟子松年轮宽度和管胞长度的径向变异
6.The radial variation patterns of wood density in19 Chinese fir provenances were studied by means of X-ray wood densitometry.以微密度分析对19个种源杉木的木材密度径向变异模式进行了研究。
7.Converse analysis on rigidity characteristics of suspension spring with varied pitch,mean diameter and wire diameter异径变节距悬架弹簧刚度特性逆向分析
8.R radial lens distortion【光】径向镜头变形
9.long addendum gear长齿顶齿轮;径向正变位齿轮;径向正变位齿轮
10.The strain singularity shifted toward 1/??应变奇异性向1／?⑵0移。
11.anisotropic (sheet) stee(变压器用)各向异性钢片
12.Two-direction Variation S-Rough Sets of the Variable Precision and Its Variable Structure;变精度双向变异S-粗集与它的变异结构
13.Technical Study of Radial Extrusion Forming on the Super-Long Odd Shafts based on Multiple Directions Extrusion基于多向挤压的超长异形轴径向挤压工艺研究
14.Select the Radial Gradient from the Tools option.在属性栏上设置渐变模式为"径向渐变".
15.Local Governments and Variations of Financial Systems:Ways and Efficiency;地方政府与金融体制变异:路径与效率
16.Detection of the variation points of Weihe River watershed runoff process based on rank sum渭河关中段年径流过程变异点的诊断
17.Fréedericksz Transitions in Nematic Liquid Crystal Cells Based upon Spatially Anisotropic Potential;空间各向异性势向列液晶盒的Fréedericksz转变
18.Discuss the Conversion of the Aim to the Track and Field Course,from Athletics to Practice;关于高校竞技田径向健身田径课转变的设想
相关短句/例句
radial variation pattern径向变异模式
1.A study on the radial variation patterns of wood characteristics of Alnus cremastogyne in plantation forest;桤木人工林木材性质的径向变异模式研究
3)Radial variation in bamboo density竹材径向密度变异
4)Systematric study株内径向变异模式
5)Horizontal variations径向变动
6)radial deformation径向变形
1.The result shows that the radial deformation and the change of the flange plane is induced by the circumferential weld at the joint between the cylindrical shell and the flange, the radial deformation of the actual vacuum vesel is similar to the radial deformation of the model test, but the inclination slope of the flange in the model test is ten times bigger than in th.结果表明，圆柱形壳体与法兰对接环形焊缝将引起壳体的径向变形及法兰平面度的变化；实际真空容器壳体的径向变形与模型试验壳体的径向变形相近，而环缝引起法兰平面外倾的斜率比模型试验法兰平面外倾的斜率小一个数量级。
2.The radial deformation of the key part-flexspline of the drive system is calculated.提出了一种基于静电驱动的新型机电集成传动系统,分析了该传动系统的基本工作原理,计算了传动关键零件柔轮的径向变形,给出了电场力的计算公式,得出了工作电压的解析式和输出力矩计算公式,讨论了输出力矩随主要系统参数的变化规律。
3.The radial deformation of axial spring collar was studied by using Castigliano theorem,taking this as a foundation,and then the calculation formulae loose rotation velocity was derived while considering failure.运用卡氏定理 ,分析了轴用弹性挡圈的径向变形 ,并在此基础上 ,给出了防止其工作失效的松动转速 ,为其合理设计提供了一定的参考。
延伸阅读
锻压:径向锻造 专门加工实心或空心长轴类零件的旋转锻造方法。锻造时﹐分布在棒料圆周方向的锤头(2～8个)对工件快速和同步锻打。如工件为圆截面﹐则一面低速旋转﹐一面轴向进给移动﹔如工件为非圆截面﹐则只轴向进给而不旋转。径向锻造的特点是不需要专用模具﹐能按预定程序锻出精密的轴类零件。径向锻造每次压缩量小﹐每分鐘锻打次数高﹐一般为240～1800次/分﹐能提高金属的塑性。这种方法可用於热锻或冷锻。图 径向锻造件 为常见的径向锻造件形式。锻件的精度﹕热锻的外径±0.5毫米﹐内径±0.1毫米﹔冷锻的外径±0.1毫米﹐内径±0.01毫米。 径向锻造所用设备分精锻机和轮转锻机两类。用精锻机锻造时﹐工件一面轴向送进一面旋转﹐锤头径向锻打。这类机器多用程序控制﹑数字控制或微处理控制系统自动操作﹐生產效率高﹐用以建立热锻火车轴等自动生產线和冷锻枪管来复线等。精锻机有立式和卧式之分。还有一种设备锻造时﹐工件只送进﹐不旋转﹐多用於钢厂﹐将钢锭直接锻成方钢﹑扁钢等。轮转锻机有2或4个锤头﹐锤头一面围绕工件转动﹐一面对準工件径向锻打﹐工件只轴向送进。轮转锻机结构简单﹐价格低﹐但自动化程度低﹐噪音大。
