頂寬 的英文怎麼說

中文拼音 [dǐngkuān]
頂寬 英文
crown width
  • 頂 : i 名詞（人體或物體的最上部） crown; peak; top Ⅱ動詞1 （用頭支承） carry on the head 2 （從下面拱...
  1. Leaves thick leathery, obovate - lanceolate, obovate or oblong - lanceolate, 4 - 12 cm long and 2 - 3. 5 cm wide, apex rounded, sometimes emarginated, base cuneate, abaxial surface thinly covered with a grayish to fawn indumentum at first, later glabrescent ; petiole 1 - 1. 5 cm long, glabrescent

    葉厚革質，倒卵狀披針形、倒卵形或長圓狀披針形，長4 - 12厘米，寬2 - 3 . 5厘米，頂端近圓形，有時微缺，基部楔形，下面初時薄被灰白色或淡土黃色叢捲毛，后近無毛；葉柄長1 - 1 . 5厘米，后近無毛。
  2. Leaves leathery, elliptic - lanceolate or broadly oblanceolate, 4 - 13 cm long and 2 - 4 cm wide, apex acuminate to acute, base cuneate, margin revolute ; petioles 0. 7 - 1. 5 cm long, base slightly swollen

    葉革質，橢圓狀披針形或闊倒披針形，長4 - 13厘米，寬2 - 4厘米，頂端漸尖或急尖，基部楔形，邊緣背卷；葉柄長0 . 7 - 1 . 5厘米，基部稍腫大。
  3. 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。
  4. 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。
  5. Broad top anticline

    寬頂背斜
  6. 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。
  7. One of these fellows was about seventy or upwards, and had a bald head and very gray whiskers. he had an old battered - up slouch hat on, and a greasy blue woollen shirt, and ragged old blue jeans britches stuffed into his boot - tops, and home - knit galluses - no, he only had one

    頭戴一頂寬邊軟呢帽，身穿一件油膩膩的藍色羊毛襯衣，一條破破爛爛的藍斜紋布舊褲子，褲腳塞在靴筒里，背腰用家織的兩條背帶吊著不，只剩了一條了。
  8. He wore a large brown mantle, one fold of which, thrown over his left shoulder, served likewise to mask the lower part of his countenance, while the upper part was completely hidden by his broad - brimmed hat. the lower part of his dress was more distinctly visible by the bright rays of the moon, which, entering through the broken ceiling, shed their refulgent beams on feet cased in elegantly made boots of polished leather, over which descended fashionably cut trousers of black cloth

    他穿著一件棕褐色寬大的披風，下擺的一角掀起蓋住了他的左肩，象是故意用它來遮住下半部臉似的，而上半部臉則完全藏在他那頂寬邊的帽子下面，他的下半身著裝比較清楚，從破屋頂上進來的明亮的月光，照出他的擦得雪亮的皮靴，皮靴上面是黑色的長褲，顯然他即使不是個貴族，也是上流社會中的人。
  9. The good bishop of cloyne took the veil of the temple out of his shovel hat : veil of space with coloured emblems hatched on its field

    克洛因的主教174大人從他那頂寬邊鏟形帽里掏出聖堂的幔帳：空間的幔帳，上面有著彩色的紋章圖案。
  10. Casting a glance in the direction of the church before entering his home, he beheld standing by the vestry - door a group of girls, of ages between twelve and sixteen, apparently awaiting the arrival of some other one, who in a moment became visible ; a figure somewhat older than the school - girls, wearing a broad - brimmed hat and highly - starched cambric morning - gown, with a couple of books in her hand. clare knew her well

    他在進自己的家門之前，朝教堂的方向瞥了一眼，看見有一群女孩子站在小禮拜室的門口，年紀在十二歲到十六歲之間，顯然在那兒等候某個人的到來，不一會兒，那個人果然出現了看樣子她的年紀比那些女孩子的年紀都要大，戴一頂寬邊軟帽，穿一件漿洗得發硬的細紗長衫，手裡拿著兩本書。
  11. Secondly, the effects of the crest width of the back - emf waveform to the torque ripple in the 120 ? conduction mode are analyzed, among which the effects of the advance commutation angle to the torque ripple are quantificationally analyzed for the bldcm drives whose back - emf waveform crest width is less than 120 ?,

    其次分析了120導通方式下反電動勢平頂寬度對轉矩脈動的影響，對于平頂寬度小於120電角的非理想梯形波反電動勢，定量分析了換相超前角對換相轉矩脈動的影響。
  12. The simulation results prove that this control technique can effectively minimize the torque ripple for the bldcm drives whose back - emf waveform crest width is less than 120

    模擬結果表明這種控制策略能有效地抑制反電動勢平頂寬度小於120電角的無刷直流電動機的換相轉矩脈動。
  13. Furthermore, this dissertation also gives a comprehensive analysis and comparison to the torque ripple factor, torque - current ratio and other aspects for pseudo - sinusoidal emf bldcm drived by 120 conduction mode, 180 conduction mode and self - synchronous svpwm mode respectively. the simulation and the experimental results indicate that self - synchronous svpwm method is more effective for minimizing the torque ripple without any expense of the torque - current ratio when the crest width of the back - emf waveform is less than 107 electrical angles

    對準正弦波反電動勢無刷直流電動機在120導通方式、 180導通方式和自同步svpwm三種控制方式下的轉矩脈動系數、轉矩電流比等方面進行了全面的分析與比較，模擬研究和實驗結果表明，當反電動勢的平頂寬度小於107電角時，採用自同步svpwm控制方法可以在不損失轉矩電流比的基礎上，更有效地抑制電磁轉矩脈動。
  14. For the bldcm which has a general crest width of the back - emf waveform, two kinds of torque ripple conditions when drived by sine - wave current as well as by square - wave current are deduced based on the mathematical models. in addition, a comparison is carried out between these two conditions, which indicates that sinusoidal current driving is more favorable to minimizing the torque ripple when the crest width of the back - emf waveform is less than a certain value

    闡述了抑制齒槽轉矩措施對反電動勢波形的影響，利用無刷直流電機的數學模型推導並比較了任意平頂寬度梯形波反電動勢在正弦波和矩形波兩種電流驅動下的電磁轉矩脈動情況，得出在梯形波平頂寬度減小到一定數值后採用正弦電流驅動更有利於減小電磁轉矩脈動。
  15. He had on one of the long-peaked caps but under it his father could see his eyes were wet.

    他戴了頂寬檐帽子。但他父親還是可以看到他兩隻眼睛里淚水汪汪。
  16. 8 a large old - fashioned woman ' s hat is revealed with streamers flying in a stiff breeze from the east

    一頂寬大的舊式女帽帶著那被來自東邊的和風吹得直直的飄帶出現了。
  17. The non - ideal bemf waveform of bldcm is often caused by two facts. one is that the platform width of bemf waveform is less than 120 ; the other is the cogging harmonics existed in the bemf waveform

    非理想反電動勢波形的無刷直流電機有兩種情況，一種是反電動勢的梯形波的平頂寬度小於120 ；一種是由於磁場分佈受齒槽的影響，反電動勢存在齒諧波，使其波形發生畸變。
  18. Sarah wore a straw hat with a wide brim

    薩拉戴了頂寬帽緣的草帽。
  19. The dam was 2, 352 ft. long, 178 ft. high and spanned the whole of the shek pik valley. the base was 1, 200 ft. wide, and the top was 28 ft., wide enough to accommodate traffic

    水塘的主壩橫越石壁谷，長2 ， 355尺，高178尺，壩底寬1 ， 200尺，壩頂寬28尺，可供汽車行駛。
  20. The handsome, youthful emperor alexander, in the uniform of the horse guards, in a triangular hat with the base in front, attracted the greater share of attention with his pleasant face and sonorous, low voice

    俊美而年輕的亞歷山大皇帝身穿騎兵近衛軍制服，頭戴一頂寬檐伸出的三角帽，他那喜悅的臉色清晰而低沉的嗓音吸引了眾人的注意。
分享友人
分享到 Line

分享到臉書