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Stems prostrate, ascending to erect, terete, striate or angled, branched or simple.

茎匍匐,上升的到直立,圆柱状,具条纹的或有棱,分枝或单一。

Culms basally erect or suberect, to 10 m, to 4 cm in diam., apically long pendulous or clambering; internodes terete, straight, to 60 cm, basally glossy and glabrous, distally white powdery and stiffly white hairy; wall 1–2 mm thick. Branches 50(–100) cm.

秆基部直立或近直立,在10米,在4厘米直径,下垂的长时间或者爬上的顶部;节间圆柱状,直,在60厘米,基部有光泽和无毛,上部白色粉状和硬白色有毛;壁1-2毫米厚。

Both the offset and tilted fedcoupling-slot array between the curved guide and sectoral guides and longitudinal radiating-slot array on sectoral guide are analyzed by moment method, taking into account of the effects of finite wall thickness and mutual coupling between the slots, employing the acceleration algorithms to accelerate the summation of slowly convergent series of the self-admittance of the waveguide-slot aperture, and introducing the surface Fock functions to simplify the computation of the self-and mutual coupling of the slots on the surface of cylinder.

采用矩量法分别分析弯波导与扇面波导间偏置倾斜馈电耦合缝阵和扇面波导轴向辐射缝面阵,其中计及有限波导壁厚及缝间互耦的影响,运用级数加速算法对波导中自导纳矩阵元级数进行加速处理,并引入表面Fock函数简化圆柱面上缝口面的自耦和互耦的计算。

And it is noted that the velocity field in a hydrocyclone is divided to two areas, i.e. the outer para-free-vortex and the inner para-forced vortex. The boundary surface of the velocity field is the maximum tangent velocity track surface, which is a cylinder when the hydrocyclones structure is reasonable.

分析研究结果表明,旋流器的切向速度场由外部准自由涡和内部准强制涡两个区域构成,其分界面为最大切向速度vtmax的轨迹面,结构设计合理时,此轨迹面为一圆柱面。

A Hamiltonian system was constructed for the fundamental problem of the dynamic buckling ,thereby problems of critical loads and buckling modes were reduced to determinations of eigenvalues and eigensolutions in a symplectic space and a symplectic method was proposed.

针对有内压或外压的弹性圆柱壳在轴向冲击载荷耦合作用下的动态屈曲问题,构造哈密顿体系,在辛空间中将临界载荷和动态屈曲模态归结为辛本征值和本征解问题,从而形成一种辛方法。

A planar geometric spline, biarc spline, is generalized to a 3D geometric spline whose curvature and torsion are all constant.

给出基于非线性规划解的双圆柱螺线样条局部构造法,把平面几何样条——双圆弧样条推广到常曲率和常挠率的空间几何样条。

Base point of truncated cone...

的提示下,捕捉圆柱本右端的中心点。

The problem of Polydisc is transformed into that of unit disk and an operator by H^2 Hardy space is defined in the unit disk.

将多圆柱上的问题转化到单位圆盘上,利用单位圆盘上的H^2 Hardy空间,定义出一个算子。

Owing to the geometrical symmetry of microdisk cavities, they support whispering gallery modes in which light circulates around the periphery of the structure and is confined by total internal reflections at both the sidewall and the top and bottom surfaces of the MD.

在微碟共振腔圆柱对称的结构中,电磁场藉由在碟缘墙面上全反射环绕而形成共振,产生所谓的WGM模态,透过湿式蚀刻,让微碟上下表面暴露於空气中,使相对折射率差异大,因而场型更能够对称地被局限在微碟共振腔内。

Involute cylindrical worm-helical gear transmission is to use helical gears to replace worm wheels in traditional worm wheel transmission so as to form a new worm transmission.

圆柱蜗杆斜齿轮传动是在传统的蜗杆蜗轮传动中用斜齿轮取代蜗轮而形成一种新的蜗杆传动形式。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力