張彥文 的英文怎麼說
中文拼音 [zhāngyànwén]
張彥文
英文
yan-wen zhang-
The author investigated the community of grasshoppers in changbai mountain area during the period of july to september 2001, complementally collected specimen and systematically collected and measured environmental factors from july to october in the following year, and consulted to specimen collected by fengling zhang and yanlong - yang in 1979, 1980 and 1981. by analyzing and classifying the data of five years, the author analyzed the community construction and ecological adaptability of the grasshoppers in the area. the main aspects dealing with the grasshoppers are as follows : ( 1 ) the community construction and faunal geographical elements ; ( 2 ) characteristics of their ecological distribution ; ( 3 ) vertical distribution of grasshoppers in the northern slop ; ( 4 ) the relationship between environmental factors and differences in shape of grasshoppers in different vertical belt of northern slop, etc. in terms of faunal geographical elements of grasshopper communities, 48 species of grasshopper were recorded, belonging to 31 genera, 7 families
本文作者於2001年7 9月間系統地調查了長白山地區的蝗蟲，並於2002年的7月到10月間對標本進行了補充採集，並對環境因子數據進行了系統的測量和收集，同時參考張鳳嶺、楊彥龍先生1979 、 1980和1981三年採集的標本，通過對標本的鑒定和整理，採用五年的野外工作數據，對長白山地區蝗蟲群落結構及生態適應特性進行了研究，主要研究內容包括：蝗蟲的群落結構及區系地理成分；蝗蟲生態分佈特點；保護區北坡蝗蟲垂直分佈及不同垂直帶內蝗蟲的形態差異和環境因子之間的關系等方面內容。This paper holds that the ideas of and approaches to the decoration and restoration of painting and calligraphy taken by zhang yanyuan and mi fei are of classical significance, and that the difficulties in restoring chinese painting and calligraphy determine the destiny of millions of classical chinese paintings and calligraphy
摘要本文認為，張彥遠、米芾等人關于書畫裝潢與修復的觀點和方法具有經典性意義，指出今天中國書畫修復所面臨的問題，這也直接關繫到數以百萬計的古舊書畫的命運。In this dissertation, we study the global topological classification and coefficient conditions of the plane homogeneous fifth polynomial differential system the main techniques used in this thesis includes the methods of the global structure and coefficient conditions of the plane homogeneous quadratic and cubic system mentioned in the paper [ 1 ] of professor ye yanqian, and the paper [ 2 ] of professor li xue min, also includes the idea to high - order critical point of professor zhang zhifen, lu yulin and han yuliang etc. due to the degree of polynomial in the right of equal - sign crease, when we discuss the global structure, the more special directions, the more difficulty in drawing phase portraits of this system
本文主要討論一類平面齊五次多項式微分系統的全局拓撲結構及系數條件。借鑒了文獻[ 1 ]葉彥謙教授對平面齊二次系統的全局結構及系數條件和文獻[ 2 ]李學敏教授對平面齊三次系統的全局結構及系數條件的研究方法，同時綜合了張芷芬教授、陸毓麟教授、韓玉良教授等人對高次奇點的研究思想進行討論。這樣，由於等號右邊多項式次數的增加，討論系統的全局結構時，可能出現的特殊方向就會增加，在作全局相圖時，難度增大了。Abstract : it is thought that some parameters, such as elastic coefficient, u th ratio, gr hcgr, etc., might have relations to organic carbon content in formation according to the properties of hydrocarbon source rock
文摘:張立鵬，邊瑞雪，楊雙彥等用測井資料識別烴源巖測井技術， 2001 ， 25 （ 2 ） ： 146 152根據烴源巖的地質特點，提出了地層的彈性參數、鈾釷比等幾個參數也可以反映地層的有機碳含量問題。分享友人