葉子的化石 的英文怎麼說
中文拼音 [yèzidehuàdàn]
葉子的化石
英文
lithophyl-
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。This experiment to adopt the method that paraffin was cut into slices studied the structural growth process on appearance and dissect of pugionium cornutum ( l ) gaertn in germination period and young sprout ; and to adapt wild flower, fruit, seed and cultivated root, stem and leaf of pugionium cornutum ( l. ) gaertn in leaf lushing period and leaf exhausting period from eerduosi city proceeded the research on appearance and anatomies. the result enunciates : the organs of pugiorium cornutum ( l. ) gaertn in root, stem and leaf have started dividing in germination period ; the transporting tissue and storing water tissue in young sprout period has been divided ; the ransporting tissue is flourishing, but the supporting tissue is unflourishing, so the root, stem and leaf of pugionium cormutum ( l ) gaertn is suitable for edibility
本試驗採用石蠟切片研究了沙芥發芽期、幼苗生長期各器官形態及解剖結構的變化過程;並對采自鄂爾多斯市野生沙芥花、果實、種子及人工栽培的葉片旺盛生長期、葉片生長衰退期的根、莖、葉等材料進行了形態及解剖學研究,結果表明:沙芥發芽期根、莖、葉各器官內組織已開始分化;幼苗期已分化出發達的輸導組織及貯水組織;葉片旺盛生長期各器官具有發達的輸導組織,但機械組織不發達,因此沙芥的根莖葉適于食用。Pilsenite is a rare mineral and its information is deficient. the first found pilsenite in china is in gaozhuang, henan province. pilsenite, associated with pyrrhotite, pyrite, hessite, gold, produced in pyrrhotite - polymetallic stage. three bismuth - tellurides produced in gaozhuang are well concordant with the standard pilsenite in composition, and other three are different from any of known bismuth - tellurium minerals. single crystal diffraction were made on a larger mineral grain of pilsenite. au growth and decline together with bi and te in ores and wall - rocks, which suggests that bi and te play a important role in migration and enrichment of au
經電子探針分析,高莊金礦有多種鉍碲化物,有三粒礦物的成分與標準葉碲鉍礦完全一致。對一較大顆粒的葉碲鉍礦做了單晶x射線衍射分析。 au與bi在礦石和圍巖中的含量呈共消長關系, te與bi可能對au ag的遷移富集起了重要作用。The study shows that the early and late seed rains of constructive tree species in evergreen broadleaved forest at chongqing simian mountain had no activity. the bigger the seeds of the species and the earlier or later the seeds of the species matured, the higher the proportion of the seed rain damaged by animals. the quantitative variation of seed rain, active seed rain and seed bank did not take place at the same time. at early time, the number of seed banks of castanopsis fargesii, lithocarpus glabra, quercus myrsinrefolia, castanopsis plasyacantha, cinamomum subavenium. which own more active seed rain increased by geomitric series. the seed banks of castanopsis orthacantha and schima argentea were small, only survived a short time, and did not sprout next year. the quantitative dynamics of seed banks and their increasing or decreasing rates were decided by the proportion damaged by animals, dying speed of seeds and their resistance to pathogens and adverse circumstances, and the state of seed germination
對重慶四面山常綠闊葉林建群種種子雨、種子庫的研究表明,建群種早期和晚期的種子雨無活力;種子偏早或偏晚成熟及大籽粒的樹種,其種子雨被取食的比例大;種子雨、有活力種子雨、種子庫三者的數量變化不一致;有活力種子雨量較大的栲、石櫟、小葉青岡、扁刺栲、香桂等,其種子庫密度在早期以近幾何級數的方式增長,元江栲、銀木荷種子庫小,存在時間短,翌年無一年生萌發苗;種子庫數量動態、消減率動態決定於種子被取食的強度、種子衰老的速度以及種子對病菌、逆境的抗性和種子萌發的整齊性The comparison of stomatal parameters in leaf cuticles between two fossil angiosperms from the pliocene in west yunnan and their nearest living equivalent species indicates a little higher atmospheric co2 level at that time than the present, while carbon isotopic composition of fossil cuticles demonstrates much higher carbon isotopic discrimination and slight lower water use efficiency, showing a warmer and wetter climate than today
摘要對滇西騰沖新近紀兩種被子植物葉片及其現存對應種的氣孔參數和碳同位素組成的綜合分析表明:當時的大氣co2濃度略高於現在水平;化石種的碳同位素分餾值高於現存對應種,但水分利用效率低於現存對應種;這證明當時的氣候條件比當前更為溫暖濕潤。A remnant or trace of an organism of a past geologic age, such as a skeleton or leaf imprint, embedded and preserved in the earth ' s crust
化石埋置並保存於地層中的古生物遺體、遺物和其生活遺址,如骨骸、葉子的印痕等Fossilised grape leaves, stems, and seeds have been taken from tertiary deposits of perhaps 3 millions years ago
葡萄化石的葉子、莖和種子大概都是取自於第三世紀的300萬年前的沉澱物。The development and application of the reliability theory in china was from the end of 1970s, initially, it applied only in the fields of electron element and desin of machine. then applied in the fields of the architectural engineeringand petroleum and petrifaction. from the middle of the 1990s, the theory begain applied in the fields of management and maintennance and decision - making
我國可靠度理論的發展與應用是自七十年代末八十年代初,最初應用於電子元件、機械製造設計與加工領域,后來逐步引中到建築設計、石油石化等行業,可靠度理論應用於管理決策、維護、維修決策在九十年代中葉。The team discovered a beautiful fossil of a leaf
這個小隊發現了一塊美麗的葉子的化石。分享友人