Severe “ whiptail ” condition in field specimen from and acid soil . bare midribs or very narrow residual lamina 甘藍(lán)缺鉬“鞭尾癥：在田間試驗(yàn)和酸性土壤上有嚴(yán)重的鞭尾癥狀，中脈突出，狹小的葉片殘留。
We use bezier curves to describe the shape of leaf midrib and embed the image of leaf into the space of local frames along the midrib curve 植物葉面的造型采用bezier參數(shù)曲線描述葉子中脈的形狀，然后將葉子的紋理圖象嵌入到葉脈曲線的局部標(biāo)架中。
As for the leaves , we use bezier curves to describe shape of leaf midrib . the texture image of leaf is embedded into the space of local frames along the midrib curve 對(duì)于葉片的生成,本文采用bezier參數(shù)曲線描述葉子中脈的形狀,把樹(shù)葉或草葉構(gòu)成的星形結(jié)構(gòu)紋理圖象嵌入到葉脈參數(shù)曲線的局部標(biāo)架中來(lái)實(shí)現(xiàn)。
Numerous small rounded dark brown or black necrotic patches in green leaves ; patches often in groups or rows close to midrib or major lateral veins , towards centre or basal areas of leaflects ; petioles green and healthy 缺錳的馬鈴薯葉片：葉片上有大量深褐色或黑色壞死小圓斑，葉的主脈或大部分側(cè)脈附近有條狀斑紋，向葉中部和基部擴(kuò)散，葉柄正常并保持綠色。
Detail of young leaves and growing point ; many leaves reduced to bare midrib or narrow green corrugated residue of lamina ; youngest leaves and growing point brown and dead ; large green stipular lamina around crown 缺錳甘藍(lán)的“鞭尾癥：關(guān)鍵在于嫩葉和生長(zhǎng)點(diǎn)，許多葉片露出中脈或縮小成綠色波狀的薄層殘留，心葉和生長(zhǎng)點(diǎn)變褐并死亡，頂部周圍有大量綠色長(zhǎng)有托葉的葉片。
It is mainly characterized in the triangular - lanceolate leaves which are green but white with dark green reticulation along the midrib and more or less truncate at base ; the flowers are erect on the rachis and half - opened ; the lip is tripartite , glabrous , more or less urceolate in side view ; the hypochile is saccate , ovoid and big while the epichile is relatively tiny , reflexed , undivided and transversely oblong or subreniform 本種之主要特征為： ?呈三角?披針形， ?面?色，沿中?有白色斑塊， ?基多少呈截形；花直?于花軸，半張；唇瓣呈三段? ，平?無(wú)毛，側(cè)視時(shí)多少呈壺型；基段片囊? ， ?形，巨大，先段片相對(duì)微小、反卷， ?再細(xì)?而呈橫向橢圓形。
Leaves tufted ; stipes 15 - 30 cm long , densely scaly at base , glabrous above ; sterile lamina about 60 cm long and 20 cm wide , simply pinnate ; pinnae numerous , alternate or subopposite , linear - lanceolate , the largest about 12 cm long and 1 cm wide , base cordate , apex acuminate , margin finely toothed ; veins close , forking once or twice and forming areoles near the midrib ; fertile lamina similar to sterile ones , but somewhat reduced , about 8 cm long and 0 . 4 cm wide , lower surface almost entirely covered with sporangia 葉簇生；葉柄長(zhǎng)15 - 30厘米，基部密被鱗片，向上近光滑；不育葉片長(zhǎng)約60厘米，寬20厘米，一回羽狀；羽片多數(shù)，互生或近對(duì)生，線狀披針形，最長(zhǎng)者長(zhǎng)達(dá)12厘米，寬約1厘米，頂端長(zhǎng)漸尖，基部心形，邊緣有細(xì)密鋸齒；葉脈1 - 2次分叉，近中脈形成網(wǎng)眼；能育葉與不育葉相似，但較小，長(zhǎng)約8厘米，寬約0 . 4厘米，下部滿布孢子囊。
English
Noun
the vein in the center of a leaf Synonyms: midvein,
What is the meaning of midrib in Chinese and how to say midrib in Chinese? midrib Chinese meaning, midrib的中文，midrib的中文，midrib的中文，translation, pronunciation, synonyms and example sentences are provided by ichacha.net.
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