1) Leaf shape
叶形
1.
The length,width,thickness and weight of the current year and more than one-year-old needles of both bi-needle-cluster and tri-needle-cluster of slash pine(Pinus elliottii) were measured to expose the differences in terms of leaf shape and specific leaf area(SLA),and leaf area index(LAI) was estimate based on measurement of the plantation in Qianyanzhou Ecological Station.
对湿地松(Pinus elliotii)当年生和多年生两针一束、三针一束叶片的长度、宽度、厚度和重量分别进行量测,据此探讨不同类型叶片的叶形和比叶面积差异,并结合样地调查数据对中科院千烟洲试验站湿地松人工林的叶面积指数进行计算。
2.
Leaf shape is a very important characteristic in virtual crop growth modeling,and some empirical curves have been used to describe leaf morphology based on field experiments in the previous study.
对叶曲线方程的灵敏度分析表明,方程较好地体现了叶长、叶宽、叶形、比叶重和叶片形变系数等参数对叶曲线的综合影响,与生产中水稻株型特征变化相一致。
3.
Leaf structure parameters of different types of wheat varieties were quantitatively described, and analytic models and a deduction system for simulation of wheat leaf shape and LAI development along with growth stages established.
对不同类型冬小麦品种叶形空间分布参数进行了定量描述 ,建立了叶片形状、叶面积指数随生长期的变化、叶面积随高度的分布及叶倾角分布 (L A D)等叶形空间分布的模拟模型及推理系统 ,提出了叶片形状因子和长势模拟模型 ,单叶空间最高点、高度层间隔内累积投影叶面积及各组分的空间取向与叶倾角分布解析模型系统及其主要设计算法。
2) blade casing
叶片造形
3) pentalobal
五叶形
1.
Discussion of coarse pentalobal bright PA6 FDY production process;
粗旦五叶形有光PA6 FDY的生产工艺探讨
4) fork-type blade root
叉形叶根
5) skewed blade
掠形叶片
1.
The mechanisms of an axial fan with skewed blades in reducing noise are analysed.
分析了掠形叶片轴流叶轮的降噪机理。
2.
The axial fans with skewed blades widely used in engineering practices are studied, and during the study, the blade is divided into N elementary sections in radial direction.
通过将掠形叶片沿径向分为N个叶元体，推导了第k叶元体与气流相互作用诱发的叶元体尾缘涡流噪声模型与轴流风机的涡流脱落声学模型，通过实验验证了理论模型的正确性，并分析了叶轮结构参数与涡流脱落噪声的关系。
6) trapezoid lobulated
梯形分叶
补充资料：仰叶形夔纹
仰叶形夔纹 青铜器纹饰之一。其状如仰叶形，中两夔纹相对，空间填云雷纹。通行于两周前期。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条