楔葉 的英文怎麼說
中文拼音 [xiēyè]-
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。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。Leaves leathery, oblong - elliptic, rarely ovate - elliptic, 7 - 18 cm long and 3. 5 - 8. 5 cm wide, apex abruptly short acuminate or short acuminate, base cuneate, broadly cuneate or obtuse, adaxially dark green and glossy ; petioles without stipular scars
葉革質,長圓狀橢圓形,倒卵狀橢圓形,長7 - 18厘米,寬3 . 5 - 8 . 5厘米,先端驟狹,短漸尖或漸尖,基部楔形、闊楔形或近圓鈍,葉面深綠色,有光澤;葉柄上無托葉痕。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。Leaves leathery, oblong, 7 - 13 cm long, base cuneate, glossy above, glabrous on both surfaces, margin sparsely and obtusely dentate ; petiole 1 cm long
葉革質,長圓形,長7 - 13厘米,寬2 - 4厘米,先端銳尖,基部楔形,上面發亮,無毛,邊緣有疏鈍齒;葉柄長1厘米。Leaves thickly leathery, obovate - elliptic to elliptic, 8 - 12 cm long, 4 - 5 cm wide, apex acute, base cuneate, glabrous, serrulate ; petiole 0. 6 - 1 cm long
葉厚革質,倒卵狀橢圓形至橢圓形,長8 - 12厘米,寬4 - 5厘米,先端短尖,基部楔形,無毛,邊緣有細鈍齒;葉柄長0 . 6 - 1厘米。Leaves basal ; petiole up to 3 cm ; leaf blade elliptic, 2 - 3 cm long and 1. 1 - 1. 9 cm wide, apex rounded, base cuneate, margin serrulate, white pilose on both surfaces
葉全部基生;葉片橢圓形,長2 - 3厘米,寬1 . 1 - 1 . 9厘米,先端圓形,基部楔形,邊緣具細齒,兩面被白色柔毛;葉柄長可達3厘米。Leaves thickly membranous, obovate - elliptic, 8 - 17 cm long, 3. 5 - 7 cm wide, apex acute or obtuse, base cuneate ; petiole enlarged at base, stipular scars almost reach the middle of petioles
葉片厚膜質,倒卵狀橢圓形,長8 - 17厘米,寬3 . 5 - 7厘米,頂端急尖或鈍,基部楔形;葉柄基部膨大,托葉痕達葉柄中部。Leaves 2, arising from the scale axils, membranous, elliptic to ovate, 1 - 4 cm long and 0. 5 - 2 cm wide, apex rounded or slightly acute, base rounded or cuneate, margin entire and wavy ; veins 3, middle veins conspicuous, margin veins ca. 0. 5 mm from the edge ; petiole 1 - 4. 5 cm long
葉2片自鱗片腋部生出,薄膜質,長橢圓形或卵形,長1 - 4厘米,寬0 . 5 - 2厘米,先端圓或略尖,基部圓形或楔形,邊緣全緣呈波狀;葉脈3條,中脈明顯,緣脈距葉緣約0 . 5毫米;葉柄長1 - 4 . 5厘米。Leaves alternate, thinly leathery, obovate, narrowly obovate or oblong - obovate, 6. 5 - 16 cm long and 3. 5 - 6. 5 cm wide, apex abruptly short acuminate, or acuminate, base cuneate or broadly cuneate, dark green and glossy above, glaucous beneath ; petioles 1. 5 - 2. 5 cm long, without stipular scars
葉互生,薄革質,倒卵形或長圓狀倒卵形,長6 . 5 - 16厘米,寬3 . 5 - 6 . 5厘米,先端驟狹短漸尖或漸尖,基部楔形或闊楔形,上面深綠色,具光澤,下面被白粉;葉柄長1 . 5 - 2 . 5厘米,無托葉痕。Equisetales ( horsetails ) the single order of the phylum sphenophyta, which contains the horsetails
木賊(楔葉類) :是楔葉植物門的一個獨立的綱,僅包括木賊目。Strobilus ( pl. strobili ) a group of sporophylls ( spore - bearing leaves ) arranged around a central axis, found in gymnosperms, lycophyta ( clubmosses ), and sphenophyta ( horsetails )
球果:孢子葉向中軸聚攏形成的結構,存在於裸子植物門植物、石松亞門植物(石松)和木賊綱植物中(楔葉類) 。In the clubmosses and horsetails only one type of strobilus is formed, while in the gymnosperms female megastrobili and male microstrobili both develop
石松和楔葉類只形成一種類型的球果,然而裸子植物既有雌性的大孢子葉球也有雄性的小孢子葉球。R. russatum, r. primulaefolium, r. tarpetiforme, r. cuneatum, r. fastigiatum and r. traillianum, etc
出現種類有紫藍杜鵑、纓草杜鵑、單色杜鵑、楔葉杜鵑、密枝杜鵑和棕背川滇杜鵑。R. russatum, r. cuneatum and r. fastigiatum are rare to be seen in other places in nw yunnan, which could be considered as the conservation targets in the lashihai region
其中紫藍杜鵑、楔葉杜鵑和密枝杜鵑在滇西北其它地方少見,可列為保護目標。In p. salicina, leaves with a green petiole were long ellipse and wedge - like at the base, with no hair on the surface and petiole. in p. ameniaca, the leaf was rough on the surface and had hair. with its own germplasm characteristics, p. mume was close to p. ameniaca in genetic relationship
李類植物的葉形為長橢圓形,葉基楔形,葉面無毛,葉柄綠色且無毛;杏類植物葉面粗糙、有毛;梅類植物接近於杏類,與杏類植物有較近的親緣關系,但又表現出豐富的種質特異性。For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation
數值模擬採用fluent軟體,計算結果用excel進行處理,通過對大量數值工況進行數值模擬計算,結果表明:對于單側百葉風口,計算表明: 1 )對于公式p = ( ~ 2 ) 2 ,的理論計算值中定義為流體流經百葉風口內部時的速度,即有效速度,而工程上常使用流體的來流速度來計算,計算表明,的理論計算值與工程應用值的關系為( _ (理論) ) ( _ (工程) ) = 0 . 813 ; 2 )當來流速度一定時,擋板傾斜角度越小,壓力損失越小、出口速度越小;因此在要求進口風速比較小的場所,如播音室、圖書館等,宜採用擋板角度30的百葉風口;在要求進口風速比較大的場所,如電影院、辦公室等,百葉擋板的角度應選45 ; 3 )當來流速度一定時,百葉擋板的擋板寬度b與擋板間距h的比值b h越大,壓力損失越大,出口速度越小,計算表明,鑒于壓力損失、出口風速、板間形成渦流區的大小,百葉擋板的b h值取0 . 8到2 . 0之間, b h = 1 . 2為最佳值; 4 )當來流速度一定時,在計算的條件下,當百葉擋板寬度b = 40mm時,百葉擋板的阻力系數最小,考慮到渦流區等的影響,建議選用10mm b 50mm的百葉擋板;西安建築科技大學碩士學位論文5 )百葉擋板的厚度取為1 . sinln為好; 6 )百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板,利用其較好的導流作用,可得到更好的出流效果。2. methods in frequency domain : through a comparative study, wedge and ring feature of fourier transform performs better than other features based on texture spectrum. it represents the directivity, coarseness and regularity of an image
在基於頻率域的紋理分析方法中,分析了基於傅立葉變換的紋理分析方法,經兩組對比實驗,楔環特徵能夠很好的反映圖象紋理的方向性、粗糙性和規律性,在檢索中明顯優于基於頻譜的簡單統計特徵。分享友人