長頂齒 的英文怎麼說
中文拼音 [zhǎngdǐngchǐ]
長頂齒
英文
long tooth-
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。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。Leaves opposite, papery, ovate, suborbicular or elliptic, 4 - 8 cm long, apex rounded, base rounded to broadly cuneate, margin with regular and slightly sinuate teeth except base, covered with yellowish brown tufted appressed hairs ; petioles 0. 6 - 1. 5 cm long
葉對生，紙質，圓卵形、近圓形或橢圓形，長4 - 8厘米，頂端圓形，基部圓形至寬楔形，邊緣除基部外具整齊而稍帶波狀的鋸齒，兩面被黃褐色簇狀短伏毛；葉柄長6 - 15毫米。The water current flows over the top of the dentoid baffle to the hydraulic jump as additional momentum. while it is cooperated with a stilling basin, the flowing condition emerged in the basin may be improved greatly and the length and downstream water depth required by the basin can be decreased to a great extent. such an appliance may be also used to solve the problems of insufficiently dissipating water flow energy and aerating flow, which are often faced with those hydraulic engineering constraction as acted by high waterhead, great specific discharge and low froude number
本文通過齒墩頂部的擴散水舌所形成的附加射流，從上部射入水躍，即可改善消力池內的水流流態，又可降低第二共軛水深，減小水躍長度，增進水躍消能效果，同時還能解決大單寬、低佛勞德數條件下摻氣和消能不足的問題，試驗證實它是一種安全、經濟的消能工。A gear operator may easily be mounted on top of the external support plate of all stem extensions
一個齒輪操作機構可以容易的安裝在所有閥桿加長件的外部支撐板的頂部。Witch has worked out the tooth shape of datum rack and computer simulation of gear manufacture. pointedness, undercut and tooth tip becoming sharp are analysed. tooth thickness calculation and measurement, superposition coefficient calculation and belt length calculation are resolved
2 、給出了基準齒條的齒廓形狀，進行了齒輪加工計算機模擬，分析了可能出現的稜角問題，進行了齒輪內齒頂圓的求解、根切問題分析、齒厚計算與測量、齒頂變尖的分析、重合度的計算、帶長度的計算及齒輪設計的程序編制等。General ? for both the basic and cpvc housed stem extensions, the bottom rod coupling utilized for all ball valve extensions is fitted with turning - stops
一個齒輪操作機構可以容易的安裝在所有閥桿加長件的外部支撐板的頂部。A long - handled implement with a row of projecting teeth at its head, used especially to gather leaves or to loosen or smooth earth
耙子，耙機頂部有一排凸出的齒的長柄工具，尤指用於收集樹葉或疏鬆土壤的分享友人