This is so because climbing plants are likely to encounter intensive - changing environmental condition during their growth ( especially change of illumination ). secondly, there is a large proportion ( 30 - 40 % ) of climbing plants which belong to dioecism, and hence a gap between male and female plants on morphology, biological characteristic, economic value and so on. this dissertation focuses on herbaceous climbing plants, perennial or annual species such as dioecious trchosahthes kirilowii maxin and dioscorea opposita thumb, and monoecious luffa cylindrical ( l ) roem, it attempts to discover how climbing plants adapted to various environments and the mechanism of adaptation from aspects of physiological and reproductive ecologies at present, due to overuse of chlorofluorocarbons ( cfcs ), the ozonosphere has become thinner and thinner, and the ultraviolet - b ( uv - b ) radiation has increased considerably
而攀援植物本身是一類理想的植物行為生態學研究材料:第一,攀緣植物由於受攀緣能力和支柱木資源的限制,在生長過程中通常要遇到強烈變化的環境條件(特別是光照) ;第二,攀緣植物中具有較高比例的雌雄異株類型,通常佔地區攀緣植物種類的30 40左右,不同性別的植物在形態學及生物學特性、經濟價值等方面存在一定的差距,因此,本文以雌雄異株攀緣植物栝樓( trchosahtheskirilowiimaxim ) (葫蘆科多年生草質藤本植物)和
山藥( dioscoreaoppositathunb ) (薯蕷科薯蕷屬植物) 、雌雄同株異花攀緣植物絲瓜[ luffacylindrical ( l ) roem ] (葫蘆科一年生攀緣草本植物)為材料,試圖從生理生態學及生殖生態學角度揭示攀援植物如
何適應不同生境及其機理。
Typical variable windfield models, such as large scale steady wind flow, downburst, turbulence, airflow over mountain, are developed and their physical specialities are discussed. furthermore, simplex modules are integrated to form complex model. facticity and application technique to flight simulation are discussed
討論了以下幾種典型風場模型(大尺度均值風模型、 dryden紊流模型、微下擊暴流模型和過
山氣流模型)的物理特徵與建模方法,並對單一模型進行復合,建立變化風場模型庫,最後討論了各種模型的真實性與如
何應用於飛行模擬; 3
This paper is an analysis of the agriculture - dominated yuanmou county characterized by mountainous, tropical and droughty agriculture from the perspective of approaches of developing specialty agriculture in sw china inhabited by minority ethnic groups and against the background of county agriculture development in the rest of yunnan and even the rest of the whole country. in the paper a variety of approaches are employed, such as demonstration, contrast and statistics, no to mention the introduction of reference index system of economic competitive power for the purposes of contract, analysis and assessment
本文從西部邊疆少數民族地區如
何發展特色縣域經濟的視角出發,以全國和雲南省的縣域經濟為研究背景,選擇了雲南元謀這個具有農業主導縣特徵、
山區縣特徵和獨特「乾熱資源」有特色產業的縣作為研究對象,以實證、對比等統計方法作為研究手段,並以中國縣域經濟競爭力評價指標體系的指標作為參照指標,進行對比、分析和評價。
My father is an engineer, and he can make whatever you see in the world, everything is duck soup for him. do you know the alps
我父親是個工程師,他能製造世界上任
何東西,所有東西對他來說都只是小菜一碟。你知道阿爾卑斯
山嗎?
That mountainous city road is the public exhibition of a mountainous country city, affecting the whole image of the city, but the necessery gardenlization streets sight design is a means to increase city image. however, city that front with several design how to beautify the sport for the characteristic with the estheticism, to mountainous city, the road ' s gardenlization streets sight design results in ecology problem, and more roads are not widespread thought of
山地城市道路是
山地城市的公共展廊,它影響著城市的整體形象,而必要的園林化街景設計是提高城市形象的手段。然而,當前以幾
何設計和唯美主義為特徵的城市美化運動,對
山地城市園林化街景的設計,造成生態環境問題,而更多的街景設計未被普遍重視。
The chinese new year is in front and back, the report spring flower and beautiful mountain tea, gorgeous cuckoo, the radiant magnolia, the plum flower of a frost snow, draws a gorgeous and colorful painting book together, facing to cloud spring of the expensive plateau
「天涯
何處無芳草」這句名言在雲南如果用來指報春花是恰如其分的。春節前後,報春花與嬌艷的
山茶,絢麗的杜鵑,晶瑩的玉蘭,頂霜傲雪的梅花,同繪出絢麗多彩的畫卷,迎來雲貴高原的春天。
Additional information on how to get to mount fuji
有關如
何抵達富士
山的額外資訊
From alexander the grammarian, to refrain from fault - finding, and not in a reproachful way to chide those who uttered any barbarous or solecistic or strange - sounding expression ; but dexterously to introduce the very expression which ought to have been used, and in the way of answer or giving confirmation, or joining in an inquiry about the thing itself, not about the word, or by some other fit suggestion
從文法學家亞歷
山大那裡,我學到了不吹毛求疵,不用責備的語調責罵那些說出任
何野蠻的、失禮的或聞所未聞話語的人;而是巧妙地導向不管是回答問題還是給予證實的恰當表達,或是一起弄清問題而不糾纏于詞句,或者提出其他合適的建議。
We have no vast mountain ranges, no illimitable plains, no leagues of forest, and are deprived of the grandeur that may accompany these things
這兒沒有崇
山峻嶺,沒有一望無際的平原,也沒有廣袤的森林,因而無從領略這些景物是
何等壯觀。
On a simulated lunar surface, visitors can create impact craters by dropping " meteorites ". a cross - section of a meteorite can also be examined through a microscope in this area
觀眾可在一個模擬的月球表面投下隕石,看環形
山如
何形成又可利用顯微鏡觀察一塊隕石的橫切面。
Since the gravitational field on the surface is very strong, no hills or mountains can be formed on a neutron star
由於引力場實在太強大,任何山脈高山皆會被引力蕩平,所以中子星的表面十分光滑。