In this paper, two major types, the natural vegetation and crop vegetation in luota are studied. we can gain the different distributive area by remote sensing technology, in accordance with conifer forest, broadleaf forest, thick shrub forest, shrub forest, herbs shrub forest, herbs naked rock and crop vegetation. the valuation of the output of standing trees, water conserbancy, soil conserbation to control erosion and purify the air is the main basis which is used to value the functions of the forest ecosystem of the conifer forest and broadleaf forest of luotathe result reveal that the total ecological function value of the forest which area is 1388. 8 hm2 is estimated up to 18. 36 million yuan per annum. the synthetic valuation system of luota vegetation is put forward by the valuation of per hm2 in evergreen - deciduous forest, conifer forest, conifer and broadleaf forest, broadleaf forest, scatteredtree - shrub forest, coppice - shrub forest, herbs shrub forest, econamic crop and cereal crops. the plant resources is valued according to the ornamental and green plant. lumber trees and medical plant. ornamental plant includes hosta plantaginea. lilium brownii van viridulum, spiraea cantomiensis and so on. lumber tuees includes zzzelkova schneideriana, emmenopterys henryi, catalpa fargesii and so on
本文把洛塔現存植被分為自然植被與栽培植被兩大類進行研究,通過遙感技術對現存植被按針
葉林、闊
葉林、密灌、灌叢、草灌、荒草裸巖、農作物植被等類型進行分佈面積的統計,在此基礎上,以林產品價值、涵養水源價值、保護土壤價值和凈化空氣價值作為估算的主要參考依據,對已成林的針
葉林與闊
葉林進行森林生態系統的價值估算,得出面積為1388 . 8hm ~ 2的針
葉闊
葉林的森林生態價值為1836 . 37萬元,參照這一生態價值量,把洛塔植被按常綠落
葉林、針
葉林、針闊
混交林、闊
葉林、疏林?灌叢、矮灌叢、荒草灌叢、經濟作物和糧食作物,以每hm ~ 2的價值量提出了洛塔植被的綜合價值體系。
He brushed away the debris of leaves and pine needles, webs, cocoons and insect corpses.
他撣掉了一大堆枯
葉、松針、蜘蛛網、蟲繭和昆蟲的屍體
混成的垃圾。
The results indicated that chinese crocodilian lizards distributed in streams of mountain, and mainly lived in four types of vegetation : broadleaf forest, conifer and broadleaf mix - forest, shrubbery and bamboo forest
鱷蜥主要棲息于闊
葉林、針闊
混交林、灌木林蔭、竹林4種植被類型的山沖溪溝之中。
Lutein is an active carotenoid and potent natural source antioxidant. it is extracted from marigold flowers and contains a normal blend of carotenoids including : zeaxanthin and cryptoxanthin
葉黃素是一種活性類胡蘿卜素,它是天然的抗氧化劑重要來源,取自萬壽菊花,它含有一種純
混合類胡蘿卜素:玉米黃質和隱黃質。
Climatological data from fossil pollen, leaves and wood indicate that the cretaceous forests of northern alaska consisted of a mixed canopy that included deciduous conifers with an understory of flowering plants, ferns and cycads
由花粉、
葉子和木材化石?集到的氣候資料顯示,阿拉斯加北部的白堊紀森林有
混合型林冠,包括了落
葉針
葉林以及林下的開花植物、蕨類和蘇鐵。
As we know, inverse techniques make blade ' s profile well compatible with its surface velocity distribution, however, they give designers big challenges that the ideal velocity distribution is hard to obtained and sometimes the non - physical solution, such as double covering of flow field or unclosed profiles, would come out. the proposed design procedure in the paper has avoided the disadvantage mentioned above. in this paper, a quasi - irrotational equation is used to describe the flow in cascade instead of the generally used irrotational equation
眾所周知,一般的反問題和
混合問題的最大特點,是在給定的壓力面和吸力面上的壓力分佈或速度分佈條件下,直接得到
葉片的幾何形狀,它可以使
葉型型面與表面氣流參數有機結起來;其不足之處在於,對設計者而言,很難給定理想的
葉片表面壓力分佈或速度分佈,並且有時會得到一個非物理解,如:得出的初始
葉型可能會出現前緣、尾緣不封閉的現象。
China. manufactures man - made board making equipment. includes hot presses, spreaders, wood bending machines, flakeboard dryers, fringe sawers, glue mixers, and bamboo and straw mat flatting units
-生產麵粉機玉米加工機械連續干涉式
混合機旋
葉式壓濾機膜濾機
混凝土砌塊成型機。
Soak finished compost in water to “ brew ” compost “ tea, ” a nutrient - rich liquid that can be used for foliar feeding or for watering plants in your garden, backyard, or houseplants
水中浸泡后充分腐熟的堆肥「茶」是一種有豐富營養的液體,在您的花園、後院或室內植物栽培中可以直接作為
葉面施肥使用或在澆水時
混入。
Abstract : the main features, the key points of design, material selection and test method of international metal and ceramic hybrid type multilayer stator vane are reviewed in this paper
文摘:評述了國外金屬和陶瓷多層
混合式靜子
葉片的主要特點、設計要點、材料選擇和試驗方法。
The paper studied comprehensive performance of ten different mixed lawn grass at chengdu city, the characteristics of lawny planting speed, greensward density, leaf texture, green vegetation index, disease resistance, the cover age, uniformity and comprehensive quality were evaluated
摘要對10個
混播組合草坪草在成都地區的綜合表現進行了研究,分別對建植速度、密度、
葉片質地、綠度、抗病性、蓋度、均一性、綜合評定共8項質量進行綜合評價。
Determination of nicotinic acid and folic acid in compond premix - high - pressure liquid chromatography
復合預
混料中煙酸
葉酸的測定高效液相色譜法
Feed grade marigold powder is obtained from saponified marigold oleoresin mixed with carrier. it is used as a kind of natural feed additives
飼料級
葉黃素粉末是由萬壽菊花中提取的
葉黃素樹脂經過皂化處理,再添加載體
混合而成的一種純天然飼料添加劑。
Sir walter raleigh, a great english explorer, regularly drank a mixture of wild strawberry leaves and always placed potpourris of roses and orris powder throughout the rooms of his home
沃爾特?拉雷格爵士是一位偉大的探險家,他定期飲用一種由野草莓
葉製成的
混合物,並且總是把玫瑰和鳶尾草粉末
混合在一起,撒滿他家的房間。
Sinense y. x. lin is a mixed mating system and the intergametophzyme outcrossing among perhaps plays a main role
這說明荷葉鐵線蕨種群可能是以配子體間異交為主的混合交配體系。