卜若地属几种植物中的任何一种,具基生草状叶,在类似葱属植物的无叶的茎干上长有球形的头状花序。
Any of several plants of the genus brodiaea having basal grasslike leaves and globose flower heads on leafless stems resembling those of genus allium.
大部分在古生代岩层中发现的化石都是没有脊骨的无脊椎动物,例如珊瑚、软体动物和三叶虫。
Most of the fossils seen in Paleozoic rocks are invertebrate animals lacking backbones, such as corals, mollusks and trilobites.
1971年,这艘船被保存下来,作为20世纪上半叶英国海军历史遗产的独一无二的历史纪念物。
In 1971 she was saved for the nation as a unique and historic reminder of Britain's naval heritage in the first half of the 20th century.
南部非洲多枝无叶盘绕草本植物,种植用以观赏其从地面以上球茎中生长出来的鲜绿色茎。
Much-branched leafless twining South African herb cultivated as an ornamental for its bright green stems growing from large above-ground bulbs.
无柄的叶没有叶柄。
使用泡沫陶瓷过滤器使除渣有显著效果,是获得少、无夹渣带冠导叶的一种有效途径。
The use of ceramic foam filter makes slag inclusion decrease greatly. It is an efficient way to obtain double corona stationary blades with little or no slag inclusion.
将改写后的无旋条件与连续方程联立求解,可在计算面上将叶型设计问题用标准拉普拉斯方程来表示。
The equations of continuity and quasi irrotationality are transformed into the potential stream function coordinates. Then a Laplace equation can be deduced for an aerodynamic parameter "q".
摘要:以三个不同流量系数的模型级为研究对象,对其无叶扩压器进口部分进行了详细分析。
Abstract: in this paper, set the three model stages with different flow coefficient as the research subject, the inlet of vaneless diffuser is analyzed in detail.
文中还分析了各几何参数对无叶扩压器效率的影响,从而提出旋转扩压器的设想及理论依据。
Finally the influences of geometric parameter on the efficiency of vaneless diffuser are expounded and the theoretical clue and suggestion for the design of rotational vaneless diffuser are proposed.
那些可进行光合作用和所维生的细胞呈线形结构,但原植体则无根、茎、叶的分化,无输导组织。
The photosynthetic and supportive cells tend to be organized linearly, but a thallus lacks such differentiated specialized structures as stem, leaves, and conducting tissue.
结论腮腺主导管及深叶的保留与腮腺肿瘤的复发无内在联系。
Conclusion the recurrence of parotid tumor had no relation to the retaining parotid master duct and deep lobe.
叶互生,无柄,圆柱状,肉质,基部扩大的,先端钝或具芒;叶腋束状具柔毛。
Leaves alternate, sessile, terete, fleshy, base expanded, apex obtuse or aristate awned; leaf axil fascicular pilose.
结果表明:直接对无透镜傅里叶数字全息图进行傅里叶逆变换可同时得到与物体完全相同的再现像及其共轭像;
The experimental result shows: In the digital Fourier holography, the reconstructed image and the conjugate image can be obtained by use of Fourier inverse transform directly.
提出了一种计算无叶扩压器两壁面上不可压缩三元紊流附面层的方法。
A method is proposed to calculated the incompressible three-dimensional turbulent boundary layer on both wall surfaces of vaneless diffusers.
住宅的入口由16米的无柱大跨度雨棚揭示,通过与垂直旋转木百叶的结合,创建了2.4米高的入口空间。
ARRIVAL, is announced by a 16 meters column free span canopy, which creates a 2.4 meters high entry space, bound by vertical pivoting wooden louvers.
结果表明:无叶扩压器内部流动的计算值与实验值相吻合。
The results show that the computed results of the flow within the vaneless diffuser was agreed with the available experimental data.
窄叶青8号垩白米与非垩白米的上述各指标间无显著差异。
The difference in the above indices between chalky and non-chalky milled rice in Zhaiyeqing 8 was not remarkable.
二维跨音速叶栅流场的计算是在无粘时间相关法计算程序的基础上采用无粘-边界层迭代而得。
An inviscid-viscous interaction method based on the inviscid time marching computer code has been employed to calculate the transonic flow field of two dimensional cascade.
通过对喜树叶与枝的成对比较分析,叶与枝的水溶性糖含量无显著差异。
The comparative analyses of Camptotheca acuminata Decne leaves and branches show that the difference between contents of soluble sugar in the leaves and branches is not very much.
本文在其他边界条件不变的条件下将叶片扩压器改为无叶扩压器进行了三维可压定常数值模拟。
A numerical simulation is preformed by replacing vane diffuser with vaneless diffuser with the other boundary conditions unchanged.
采用的扩压器包括无叶扩压器、叶片扩压器、低稠度扩压器和半高导叶扩压器。
These diffusers include vaneless diffuser, vaned diffuser, low solidity diffuser and half-guide-vanes diffuser.
采取扩张型非平行壁无叶扩压器,在一定的进口速度下,可望有较高的压力恢复系数,且可以缩短径向尺寸。
In a certain inlet velocities, vaneless diffusers with diffusion type have higher pressure recover coefficient and can reduce the radial size.
采取扩张型非平行壁无叶扩压器,在一定的进口速度下,可望有较高的压力恢复系数,且可以缩短径向尺寸。
In a certain inlet velocities, vaneless diffusers with diffusion type have higher pressure recover coefficient and can reduce the radial size.
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