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。
In 1253, kublai, in his expedition to conquer the state of dali, came to what is now lijiang after his troops crossed the jinsha river by using inflated bags of animal hide. that explains why many names of places in the naxi languages are transliterations of " army camps, " drilling grounds, " etc. for the mongolian language
大研保存了許多座明清的石拱橋,雖經幾百年的風雨剝蝕兵火焚毀,乃至多次大地震的破壞,石橋
如故,至今依然
雄跨主河,為這個「中國的威尼斯」 「高原姑蘇」贏得一份古樸的壯麗。
He was now wearing an adjutants uniform, with one epaulette and a shoulder knot. he walked with a jaunty strut, which would have been ridiculous if he had not been so handsome, and if his good - looking face had not expressed such simple - hearted satisfaction and good spirits
現在他穿著一套帶肩章和穗帶的副官制服,邁著穩重的
雄赳赳的步伐向前走,假
如他長得不清秀,假
如他那好看的臉上不流露著和善的洋洋自得和愉快的神態,他的步伐就會令人發笑了。
If he possessed the power of arrest any wandering eye when exhibiting the glories of his altitude on foot, his equestrian graces were still more likely to attract attention.
如果說,此人站在地上時由於他的身材長得高,易於惹人注意,那麼騎在馬上的
雄姿,就更加吸引人了。
He highly esteemed the young ; he could feel their vibrancy and creativity. the heroes in his films are invariably young men with their attendant romanticism, but they also demonstrate graceful knight - errantry, putting righteousness and chivalry first. they seek assurance from standing up to challenges
從年輕人中,他感受到那份豐沛的生命力和創造力,正
如他電影中的主人翁都是英
雄出少年,有少年人的浪漫,而在浪漫之餘,又帶有古之俠者的正義和正氣,能面對任何挑戰,肯定自我。
Emasculation will probably be needed, and the pollen so obtained being used either in the pollen-mix or for dilution purpose.
或許需要去
雄,
如此獲得的花粉可用於混合授粉或稀釋授粉。
Among them, some overturned one old dynasty, such as xianyu ; some were the nation ' s heroes, such as yuefei and zhengchenggong ; some created a wholly new history, such as emperor qing and chengjisihan
在這些英
雄當中有些是推翻一個朝代的人物,
如項羽;有些是民族英
雄,
如岳飛,鄭成功;有些是開創一個全新的歷史局面的
如秦始皇,成吉思漢。
With yao out, he averaged 12. 4 rebounds in january and leads the nba in rebounds per minute this season, averaging 19. 3 rebounds in every 48 minutes
姚明的傷病,成全了他1月場均12 . 4個籃板,而他的藍板效率在聯盟中也傲視群雄,如果折算成他上場48分鐘時間里,他將會摘到19 . 3的藍板。