鋸齒葉片 的英文怎麼說

中文拼音 [jūchǐyèpiān]
鋸齒葉片 英文
fir tree blade
  • 鋸 : Ⅰ名詞（拉開木料等的工具） saw Ⅱ動詞（用鋸拉） cut with a saw; saw
  • 齒 : Ⅰ名詞1 （牙; 牙齒） tooth 2 （物體上齒形的部分） a tooth like part of anything 3 [書面語] （年齡...
  • 片 : 片構詞成分。
  • 鋸齒 : sawtooth; serration鋸齒銼 jointer
  1. Characteristics : perennial pubescent herb ; leaves dimorphic, the radical with 3 - lobes, coarsely serrate at margin ; cymes terminal ; flowers yellow, to 2 cm diam., sepals 5, petals 5 or more ; fruit consisting of many aggregated achenes

    形態：多年生草本，被毛；葉兩形，基生葉3裂，粗鋸齒緣；聚傘花序頂生；花黃色，直徑可達2公分，花萼5片，花瓣5片或更多；頭狀聚合瘦果球形。
  2. Leaves papery, oval in outline, 6 - 7cm long and 8 - 11 cm wide, base rounded or subtruncate, trilobed or sometimes 5 - lobed ; lobes triangular - ovate, rarely ovate - oblong, apex acute or acuminate, margin serrulate, with appressed acute teeth, sometimes entire near base, glabrous or with tufted hairs at vein axils abaxially ; petiole 2 - 3 cm long, glabrous

    葉紙質，輪廓闊卵形，長6 - 7厘米，寬8 - 11厘米，基部圓或近截平， 3裂或有時5裂，裂片三角狀卵形，有時卵狀長圓形，頂端漸尖，邊緣有疏而銳利地鋸齒，有時近基部全緣，兩面無毛或下面脈腋有簇毛；葉柄長2 - 3厘米，無毛。
  3. 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15 - 30厘米，基部密被鱗片，向上近光滑；不育葉片長約60厘米，寬20厘米，一回羽狀；羽片多數，互生或近對生，線狀披針形，最長者長達12厘米，寬約1厘米，頂端長漸尖，基部心形，邊緣有細密鋸齒；葉脈1 - 2次分叉，近中脈形成網眼；能育葉與不育葉相似，但較小，長約8厘米，寬約0 . 4厘米，下部滿布孢子囊。
  4. Dentate toothed describing leaf margins that have a series of outward - pointing notches

    齒狀（鋸齒狀的） ：葉片邊緣有一系列向外的缺刻。
  5. Leaves tufted ; stipes stout, up to 1. 2 m long, densely covered with golden brown hairs at base ; lamina up to 2 m long and 1 m wide, tripinnatifid ; pinnae alternate, sparsely spaced ; pinnules linear - lanceolate, to 15 cm long and 1 - 2. 5 cm wide, short - stipitate ; ultimate lobes linear, more or less falcate, shallowly serrate, dark green and shining above, light green to glaucous below

    葉簇生；葉柄粗壯，長可達1 . 2米，基部亦密被金黃褐色毛；葉片長可達2米，寬達1米，三回羽狀分裂；羽片互生，疏離；小羽片線狀披針形，長達15厘米，寬1 - 2 . 5厘米，具短柄；末回裂片線形，略呈鐮狀，邊緣有淺鋸齒，上面深綠色，有光澤，下麵灰白色。
  6. A tall coastal or marshy sedge of eastern north america, mexico, and the west indies, having leaves with sharp, minutely toothed margins

    鋸齒草：一種產于北美東部、墨西哥和西印度群島高海岸或沼生的蓑衣草，葉片具有尖利的小齒邊緣
  7. Denticulate describing a leaf margin that is finely toothed

    具細牙齒的：葉片的邊緣有細密的鋸齒。
  8. An aeroengine power - turbine 1 ( superscript st ) stage rotor shrouded blade is taken for an example in the article, tightness of shroud and contact force 、 blade body stress under working state and assembly state are calculated by finite element contact analysis method, influence of working load ( temperature and centrifugal force ) is mainly analyzed

    摘要以航空發動機動力渦輪一級帶鋸齒形葉冠的轉子葉片為例，用有限元接觸分析方法對裝配和工作狀態下的葉冠緊度和葉冠接觸力、葉身應力進行了計算和分析，著重考察了工作載荷（溫度和離心力）對葉冠接觸力的影響。
  9. Fir - tree blade

    鋸齒，葉片燃氣渦輪機
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