過度種植 的英文怎麼說
中文拼音 [guòdùzhǒngzhí]
過度種植
英文
overcultivation-
That is the premise of the bg / ha electrophoresis codeposition. the laws of the electrophoresis deposition of the bg and ha partic les were found by the study on each of their deposition under the different conditions. the electrophoresis codeposition of the bg and ha particles had been studied and the bg / ha graded coating, which is compact in the bottom layer and porous near the surface layer, had been prepared on the surface of the dental implant after the low temperature heat treatment ( about 740 ) and fast firing ( 50 - 80 / min, heat preservation time was 5 - 8min. )
以bg微粉和ha微粉作為塗層原料，通過研究bg和ha微粉在非水介質中的分散情況和帶電特性，選擇冰醋酸為介質，使分散在其中的bg顆粒和ha顆粒表面均帶上正電荷，為電泳共沉積提供前提條件；通過對不同條件下bg 、 ha各自電泳沉積的研究，探索出了兩者電泳沉積的規律；通過對bg和ha在冰醋酸中電泳共沉積以及后續低溫（ 740左右）快燒（ 50 ? 80 min ，保溫5 ? 8min ）熱處理的研究，在鈦合金牙根種植體基體上成功制備出了底層緻密而表層多孔的bg ha梯度塗層。Tom ' s health broke down from overwork on the cotton plantation
湯姆的身體因在棉花種植園里勞累過度而垮了下來。Tashi spent his childhood in darjeeling, the famed british hill station and tea growing area
扎西在達吉嶺這個著名的不列顛登山中轉站和茶葉種植區度過童年。Instead subsistence farmers should exploit the fact that their labor costs are the lowest in the world, giving them a comparative advantage in growing and selling high - value, intensely farmed crops
不過印度的勞動成本是全世界最低的，自耕農應利用他們的相對優勢，來種植和販售需要深耕細作的高價值農作物。Ha possesses well biocompatibility, which has been discovered through test and in clinical application. however, the relatively large dissolution or resorption rates of ha will result in the failure of the implants. fluoridated hydroxyapatite ( hfa ) in whose structure f " occupies partially the position of oh " in ha, is expected to be more resistant to body fluid and less soluble than ha and still possess almost the same bioactivity as ha
生物活性羥基磷灰石薄膜（ ca _ （ 10 ） （ po _ 4 ） _ 6 （ oh ） _ 2 ， ha ）廣泛地應用於鈦合金硬組織種植體表面改性，臨床應用發現ha薄膜具有很好的生物相容性，但是ha薄膜在體內溶解速度有時可能會過快，引起種植體在體內失效，因此， ha薄膜長效性方面有待于提高。Heterostyly a dimorphism in which the styles of the same species are of different lengths, thus dividing the species into groups
花柱異長：是指在同一種植物中存在花柱的二態性，它是通過花柱的不同長度劃分的。5 、 in respect of behavioral ecology, both species can reproduce by way of forming viviparous plantlets. and it is a conversation from heterotrophy to semi - heterotrophy for the process of viviparous plantlets " formation and morphochoresis
5 、從行為生態學的角度來看，兩種植物均以通過產生胎生苗進行繁殖，胎生苗在發生及形態建成過程中，是從異養向半異養轉變。The great bustard is polyphagia bird, but it feeds mainly on plants. the feeding field habitat selection relate with that whether the grassland burn or not last year. the important factors that determine the feeding field selection are the plant species, vegetative cover score. density hemerrocallis minor and the density of pedacularis sp. on burning grasslandsjthe density of vegetation. insects quanlity. plant species richness and the height of plant are the main factors that determine the feeding field selection on unburning grasslands
大鴇是雜食性鳥類，但以植物性食物為主。對于取食地的選擇往往跟草原上一年是否被火燒過有關。在火燒地，植物種類數、植被蓋度、小黃花菜密度和蒿密度是取食地選擇的重要因素；在非火燒地，植被密度、昆蟲數量、植物物種豐富度及植物高度在大鴇取食地選擇中發揮重要作用。For that one blistering summer, the ground moisture was just right, planting early allowed pollination before heat withered the tops, and the lack of rain spared the standing corn from floods
就那年炎熱的夏天，莊稼地的濕度恰到好處，過早的種植使授粉避開酷熱在頂梢乾枯前完成，雨水稀少使地里長著的玉米免遭水災。The species were proposed to be uplisted in cites appendix ii in 1994 as a result of the increasing swiftlet nest trade through hong kong, together with evidence of over - harvesting and populations declines from southeast asian producing countries. unfortunately, the proposal was withdrawn due to objections from nest - producing countries
由於經香港進出口的燕窩數量不斷增加，並有證據顯示東南亞的燕窩生產國出現過度開采及燕子數目下降的情況， 1994年有建議把燕子加入瀕危野生動植物種國際貿易公約附錄二，可惜建議因燕窩生產國反對而遭否決。At the surface of the pollen grains there are three types of aperturates, including three porates type, three colpates type and three porate - colpates type ; and four types of sculpture, namely, reticulate, striate, striate - reticulate and verrucate. the upper epidermal cells of the leaves of 12 species plants are detected with hpias - 1000 image analytic system through the treatment of binarization, and the experimental methods are proved stable. the results indicated that the waviness of the anticlinal walls ( sfc ) and the ratio of the feret ' s diameter ( slf ) of the epidermal cells of the middle lamina in the third node of leaves starting from the lowerest part of the stem have a relative constant range and could distinguish from each other. oieanolic acid, l, 5, 8 - trihydroxy - 3 - methoxyxanthone and swertiamarin are separately detected on the tlc, and the different chromatogram of various plants can be considered as characters of identification. the contents of oleanolic acid in 12 species of plants are determinated by hplc, but among the different plants and botanical organs their contents are different, and the highest content in flowers
本文對川鄂產獐牙菜屬藥用植物資源進行了野外調查、標本採集和鑒定，對12種乾燥藥材的性狀進行了描述，提供了可以鑒別的特徵。通過掃描電子顯微鏡觀察的12種本屬藥用植物的花粉粒均為單粒花粉，萌發孔有3孔型， 3溝型和3孔溝型三種類型；表面紋飾包括網狀紋，條狀?網狀紋，條狀紋和瘤狀紋四種類型。用hpias ? 1000高清晰度彩色病理圖文分析系統對葉片上表皮細胞作圖像分析，並進行方法學研究，結果表明，同種植物莖上第3節葉片中段主脈和第1側脈之間葉上表皮細胞垂周壁彎曲程度sfc值和細胞縱、橫向直徑的比值slf值，種間有顯著差異，每種都有相對恆定范圍值。A series of 5 experiments were conducted to investigate the extraction, structure, immunomodulating effects of three chinese traditional herbal polysaccharides and approach the mechanism from view of cellular signal transduction
本研究通過5個試驗研究了三種植物多糖牛膝多糖、蘆薈多糖和黃芪多糖的提取、化學結構及其對肉雞免疫功能的影響並從細胞信息傳導角度探討其作用機制。This paper systematically analyzed and studied the impliment effect of the conversion of cropland to forest in chifeng. the results show that it can improve ecology environment, and promote agricultural production structure and its internal farming and animal husbandry structure, and it also improve the quality of farmland and grain yield per unit, transfer of rural surplus labor, increase income of farmers and herdsmen promote the farming and animal husbandry industrdialization and achieve the overall socio - economic development
本文通過對赤峰市退耕還林（草）工程實施效果分析表明:該項工程在一定程度上改善了生態環境，促進了農業產業結構及其內部種植業結構、畜牧業結構的調整與優化，推動了農牧業產業化經營及社會經濟的整體發展，有利於提高糧食單產、轉移農村剩餘勞動力、增加農牧民經濟收入。It is ascertained that it will increase the quantity of powdery mildew of wheat seedlings in the autumn under conditions of early sowing, over - density, over - watering, over - doses of fertilizer and growing of highly susceptible cultivars through large scale investigations in wheat fields
為了解栽培措施對防治小麥白粉病的作用，通過不同栽培措施對病情產生不同影響的大量田間調查，明確了小麥早播、密播，過量水、肥條件下的旺苗和種植高度感病品種，都會加重小麥秋苗帶菌量。Abstract : it is ascertained that it will increase the quantity of powdery mildew of wheat seedlings in the autumn under conditions of early sowing, over - density, over - watering, over - doses of fertilizer and growing of highly susceptible cultivars through large scale investigations in wheat fields
文摘:為了解栽培措施對防治小麥白粉病的作用，通過不同栽培措施對病情產生不同影響的大量田間調查，明確了小麥早播、密播，過量水、肥條件下的旺苗和種植高度感病品種，都會加重小麥秋苗帶菌量。The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation
本文以騰格里沙漠東南緣寧夏中衛縣沙坡頭地區人工固沙植被作為研究對象，採用傳統生態學的野外調查方法，從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境（土壤含水量、溫度）相互關系及其與植物自身生理生態適應特徵關系等多個角度研究了人工植被群落的結構及其動態變化，取得了如下研究結果： 1 、植被群落組成、多樣性及生活型：沙坡頭地區人工植被經過近50年的演變，從流動沙丘到固定沙地，沙地植被的動態變化經歷了從人工植被到人工?自然植被的轉變，從人工植被建立初期的少數幾種引種植物到現有30多種植物，隨著固定沙地時間的延長，植物種類日趨豐富，並且人工植被在15 25年、 40 50年兩個階段，物種的周轉速率最大，即群落結構變化最大。Horticulture seemed, however, to have been abandoned in the deserted kitchen - garden ; and where cabbages, carrots, radishes, pease, and melons had once flourished, a scanty crop of lucerne alone bore evidence of its being deemed worthy of cultivation
在這個果園里，以前曾一度種植過最精美的水果和蔬菜，現在卻只疏疏鬆松地種植著一些苜蓿花，由於無人照料，將來，恐怕免不了要成一塊貧瘠的空地的。Based on the previous screenhouse study and field experiment, fertilization, plant variety and plant density were studied on two selected cropping systems : rape - rice - rice and wheat - rice, using an orthogonality design
在過去網室研究和大田試驗的基礎上，在油菜-水稻-水稻和小麥-水稻兩種供試種植制度上研究了施肥、作物品種和種植密度，採用正交設計。As some of these wild plant and animal species are under the threat of extinction, international trade in these species is prohibited under an international convention
由於部分野生動植物遭過度開發，正面臨絕種的威脅，因此一項國際公約規定，禁止在國際間進行這些物種的商業貿易活動。Years of over - planting and a bumper harvest have led to a grape glut in chile, latin america ' s biggest wine exporter
連年過度種植又豐收，導致拉丁美洲最大葡萄酒出口國智利的葡萄供過于求。分享友人