By using the fixed point theorem in double cones,we study the existence of at least two positive solutions for the discrete three-point boundary value problem(BVP)Δ~2y(k-1)+a(k)f(k,y(k))=0,k∈N={1,2,…,T},Δy(0)=0,y(T+1)=βy(l),where f is allowed to change sign,l∈N_1=｛2,3,…,T-1｝,T∈｛3,4,…｝.
应用双锥上的不动点定理,得到了至少存在两个正解的充分条件,并给出了上述边值问题的Green函数。
Characteristics of a gas-solid fast separator with two coaxial cones in a concurrent downer reactor;
同轴双锥两级气固快速分离器冷态实验研究
On the basis of the structural characteristics of the common conical basket centrifuge, a new centrifuge with double cone angles conical basket is put forward in the paper.
根据常规锥篮离心机的结构特点,提出新型双锥度锥篮离心机。
Finite element analysis of a horizontal screw decanter centrifuge drum with double tapered beach;
卧螺离心机双锥角转鼓结构的有限元分析
bicone-bob torsion pendulum viscometer
双锥-垂球扭摆粘度计
radial gap of double-cone ring
双锥环的最大半径间隙
calculation for bolt load of double-cone seal
双锥密封的螺栓力计算
Improvement of Precision Forging Process for a Outer Cone Gear Ring in Double Cone Synchronizer
双锥同步器外锥环精密锻造工艺的改进
Demoulding Structural Design of Core Cooperating Pushing Plate Dual-Corn
型芯与推板双锥面配合脱模机构设计
Dual Cavity Inter-Compensate Absolute Radiometer (DCICAR);
双锥腔互补偿型绝对辐射计（DCICAR）
Finite Element Analysis for the Frame Structure of Twin Cone Rolls Axial Mill;
双锥辊辗压机机架结构的有限元分析
The Twin Cone Roll Axial Mill to Control Molding Processes Analysis and Application Studies;
双锥辊辗压成形工艺分析与应用研究
The Computational Fluid Dynamics Simulation Study of Toroidal Swirl Type Oil and Water Separation Device;
双锥型油水分离器的CFD仿真研究
New Double Conical Vacuum Dryer Used for Drying Process with Room Temperature
新型双锥干燥机为常温干燥创造条件
Analysis and design of a novel omni-directional broadband biconical antenna for mobile communication
一种改进型全向宽带双锥天线的研究
conic projection with two standard parallels
双标准纬线圆锥投影
conic projection with two standard parallel
双标准纬线等积圆锥海图
Terminology for bevel and hypoid gears
GB/T12370-1990锥齿轮和准双曲面齿轮术语
Accuracy of bevel and hypoid gears
GB/T11365-1989锥齿轮和准双曲面齿轮精度
double-reduction bevel-spur gear
双级圆锥-圆柱齿轮减速器
linearly tapered two dissimilar-core fiber
线性锥形纤芯不同的双芯光纤
Double Spiral Fluting Tap, a New Type Threading Tool
一种新型的螺纹工具——双螺旋槽丝锥