cycads
n.
苏铁(cycad的复数)；
英英释义
cycad
n.any tropical gymnosperm of the order Cycadales; having unbranched stems with a crown of fernlike leaves
双语例句
Genus of small evergreen tropical and subtropocal American cycads.
一种小的常绿热带和亚热带美洲苏铁。
Cycads and ginkgo have motile sperm, unlike gnetophytes and conifers, which produce pollen.
苏铁和银杏具活动精子可区别于买麻藤和松柏类，它们不产生花粉。
权威例句
Cycadsworld list of cycads
The Biology of the Cycads
Cycads: their evolution, toxins, herbivores and insect pollinators.
Cycads: evolutionary innovations and the role of plant-derived neurotoxins.
A phylogeny of cycads (Cycadales) inferred from chloroplast matK gene, trnK intron, and nuclear rDNA ITS region
Root-based N2-fixing symbioses: Legumes, actinorhizal plants, Parasponia sp. and cycads
Root-based N 2 -fixing symbioses: Legumes, actinorhizal plants, Parasponia sp. and cycads
DNA Barcoding in the Cycadales: Testing the Potential of Proposed Barcoding Markers for Species Identification of Cycads
Testing co-evolutionary hypotheses over geological timescales: interactions between Mesozoic non-avian dinosaurs and cycads.
1. Do not laugh cycads. In order to open a flower, it paid more than other species long effort.
不要嘲笑铁树。为了开一次花，它付出了比别的树种更长久的努力。
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2. In comparing the dry zone, growth of cycads and fern class category, a vast evergreen fields.
在比较干燥的地带，生长着苏铁类和羊齿类，形成广阔常绿的原野。
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3. Coralloid roots A type of root regularly produced by cycads, which contains symbiotic nitrogen-fixing cyanobacteria in root nodules, giving the roots a knobbly coral-like appearance.
由苏铁类植物产生的一种类型的根，根瘤中含有共生的固氮蓝细菌，使根形成珊瑚状的有节的形状。
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4. Late Permian a ginkgo, cycads , the cycads , conifers and other gymnosperms, the show began with the appearance of health.
晚二叠世出现了银杏、苏铁、本内苏铁、松柏类等裸子植物，开始呈现中生带的面貌。
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5. This leaves the minority on the occasion of the phenomenon, is considered - back to the ancestral species, because of this structure and some ferns and cycads such as lobular similar.
这种叶际上的少数联合现象，被认为是——种返祖现象，因为这种构造与某些真蕨类和苏铁类的小叶相类似。
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6. There are 11 genus with about 200 species of cycads in the world, and the chemical constituents and pharmacology of many species have been reported.
苏铁植物分11属共200余种，其中许多种的化学成分和药理作用已陆续有报道。
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7. Cycads and ginkgo have motile sperm, unlike gnetophytes and conifers , which produce pollen.
苏铁和银杏具活动精子可区别于买麻藤和松柏类，它们不产生花粉。
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8. They expected to find evidence of well-known Late Cretaceous vegetation such as conifers and cycads.
他们原本期望发现晚白垩世时期著名植物如针叶树和苏铁存在的证据。
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9. Frond A term usually applied to large well-divided leaves as found in ferns, palms, and cycads .
大形叶，叶状体：该术语通常指蕨类植物、棕榈以及苏铁类所具有的大型的、分裂明显的叶。
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10. And now, the cycads revoluta is in the small garden, cause it likes the warm sun bath.
现在铁树被挪到了园子里。可能因为它喜欢日光浴吧。
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11. We saw the meteors flew past, saw the sago cycads flowered .
我们看见流星飞过，看铁树开花。
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12. This finding is contrary to the conclusion that Cycads belong to taproot system for a long time, and is a new discovery in Cycads research.
这一研究成果打破了长期以来认为苏铁类植物为直根系植物的结论，是苏铁类植物研究的一个新的、重大的发现。
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13. There are four widely different living groups : the cycads, ginkgo, conifers, gnetophytes, and several fossil groups.
分为四个不同的类群：苏铁类、银杏类、松柏类、买麻藤类植物以及一些化石类群。
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14. This paper reports reproductive organ fossils of cycads collected by the author in China.
本文对苏铁类化石的系统分类作了概要的介绍。
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15. The plants called cycads remain rock hard. Forests arose and nurtured things with wings.
而苏铁依然顽强地存活到今天，森林产生并孕育出生有双翼的动物。
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16. The free nuclear stage in its earlier embryo development is basically the same as that of Cycads and Ginkgo.
胚胎发育初期游离核阶段与裸子植物苏铁、银杏基本相同；
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17. The cycads provide an ample and reliable source of food from June until October, while the yam is available for an even longer period.
每年的六月到十月，棕桐树的果子为人们提供了丰富而可靠的食物来源，而后者的获得时间甚至更长。
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18. The Bennettitales are a group of extinct seed plants that are similar to the cycads in both size and leaf morphology that existed from the Triassic to the early Cretaceous.
本内苏铁类是已经已经绝灭的种子植物，其与苏铁类在大小以及叶形方面均较为相似，化石记录从三叠纪到早白垩世。
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19. The Bennettitales are a group of extinct seed plants that are similar to the cycads in both size and leaf morphology that existed from the Triassic to the early Cretaceous.
本内苏铁类是已经已经绝灭的种子植物，其与苏铁类在大小以及叶形方面均较为相似，化石记录从三叠纪到早白垩世。
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20. any cycad of the genus Dioon; handsome palmlike cycads with robust crowns of leaves and rugged trunks.
凤尾蕉属的苏铁植物；一种漂亮的掌状苏铁，叶片和崎岖的树干上长有坚硬的树冠。
-- 来源 -- 汉英 - 翻译参考
21. extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian; probably extinct since the Mesozoic.
已绝迹，树干高大，乔木状，与苏铁类相仿或更为进化；首先发现于宾夕法尼亚纪；可能自中生代起灭绝。
-- 来源 -- 汉英 - 翻译参考
22. any of various cycads of the genus Zamia; among the smallest and most verdant cycads.
泽米属的苏铁植物；一般是一些最小最绿的苏铁。
-- 来源 -- 汉英 - 翻译参考
23. a family of cycads often included in the family Cycadaceae: zamias.
苏铁类的一科常常包括在苏铁科；泽米属植物。
-- 来源 -- 汉英 - 翻译参考
24. small genus of Mexican cycads; sometimes classified in family Cycadaceae.
一种小的墨西哥苏铁；有时被放入凤尾松科。
-- 来源 -- 汉英 - 翻译参考
25. any of numerous cycads of the genus Encephalartos having stout cylindrical trunks and a terminal crown of long often spiny pinnate leaves.
具有坚硬的圆柱形树干和多刺的羽状长叶尖端处的树冠的苏铁类植物。
-- 来源 -- 汉英 - 翻译参考
26. genus of small evergreen tropical and subtropocal American cycads.
一种小的常绿热带和亚热带美洲苏铁。
-- 来源 -- 汉英 - 翻译参考
27. Any of various chiefly tropical American cycads of the genus Zamia, having a thick, usually underground trunk, palmlike terminal leaves, and seeds borne in woody cones.
泽米一种主要生长在美洲热带地区的泽米属苏铁科植物，其树干很粗，通常长在地下，生有掌状顶生叶子，而且种子生于木本球果中
-- 来源 -- 英汉 - 短句参考
28. A unisexual reproductive structure of gymnospermous plants such as conifers and cycads, typically consisting of a central axis around which there are scaly, overlapping, spirally arranged sporophylls that develop pollen - bearing sacs or naked ovules or seeds.
球果单性裸子植物的生殖器，例如针叶树和铁树目植物，一般由覆满鳞片和褶皱的中心轴构成，长螺旋状排列的孢子叶，孢子叶最终成为花粉囊或裸露的孢子或种子
-- 来源 -- 英汉 - 短句参考
29. genus of large evergreen Australian cycads; sometimes classified in family Cycadaceae.
一种大的常绿澳大利亚苏铁；有时被放入苏铁科。
-- 来源 -- 汉英 - 翻译参考
cycads
