第二小葉 的英文怎麼說
中文拼音 [dìèrxiǎoyè]
第二小葉
英文
accessory flocculus-
The second picture contained for foreground only the dim peak of a hill, with grass and some leaves slanting as if by a breeze.
第二張畫，前景只是一座朦朧的小峰，草和葉子傾斜著，彷彿被微風吹動似的。Primula merriiliana is a small plant of biennial, rosette herbs with pinnately dissected leaves. the flowers are borne on leafless scapes in umbellate inflorescences, which are arranged in the form of 1 - 3 level of the umbels. they are often heterostylous, whereas p. cicutarrifolia is different from the former in having homomorphic flowers, one level of umbel, and the eroded tepals
安徽羽葉報春為具異型花、花序1 - 3層，葉羽狀深裂的二年生小草本植物，毛茛葉報春為具同型花、傘形花序1層、葉羽狀深裂的二年生小草本植物，兩物種都在第一年八月開始萌發幼苗，第二年七月結束其生活史。It divides the main vegetation of the headwater region of huangpu river into 4 categories based on field survey and observation and methods of factor analysis and systematic cluster analysis and according to the degree of soil and water conservation function : deciduous trees and shrubs are category 1 which shows very strong soil and water conservation function ; tea plantation, grasslands and pine trees are category 2 which has stronger function ; the category 3 is moso bamboos and broadleaved evergreen trees which have stronger permeability and erodibility, but the permeable performance is not outstanding, the capacity of soil moisture storage common and soil and water conservation function moderate and ; the category 4 is uncovered land where the soil and water conservation function is very weak and its permeability, erodibility, erosive resistance and soil moisture storage capacity are all notably smaller than that of the other lands
摘要在野外調查、實測的基礎上，採用因子分析、系統聚類分析的方法，根據土壤層水土保持功能的強弱，將黃浦江源區主要植被類型分為4類：落闊林、灌木林為第一類，表現出很強的水土保持功能；茶園、草地、松林為第二類，土壤水土保持功能較強；毛竹林、常綠闊葉林表現出較強的抗蝕性和抗沖性，但滲透性能並不突出，土壤貯水能力也一般，水土保持功能中等，為第三類；裸露地水土保持性能很差，單獨作為第四類，其滲透性、抗蝕性、抗沖性、土壤水庫容都顯著小於其他各樣地。This thesis discusses the problem free - surface modeling technique of turbine blade according to the property of the runner blade and the present research achievement in free - surface modeling technique, the major study concerned are introduced below : firstly, it accomplished the study of intersection for blade - to - plane and present the method of three - step algorithms such as subdivision > iterative refinements approach ; meanwhile it solved the problem of small area extend of blade by use minimal modulus method
本文針對水輪機葉片的特點，結合曲面造型技術的研究現狀，研究了水輪機葉片的nurbs曲線曲面造型問題。主要工作有：第一，完成了葉片與任意平面求交問題的研究，提出分割-迭代-擬合三步求交演算法。同時首次應用最小二乘擬合端部法解決了葉片的小區域延展問題。In the second part, a few kinds of particles with different densities and sizes were picked and used to study the trajectories and the distributions inside the pump impeller
在第二部分工作中，精心選擇幾種不同密度、不同大小粒子，進行葉輪流道內粒子運動軌跡和粒子分佈的實驗研究。分享友人