It combines a LC VCO, realized by on chip symmetrical spiral inductors and differential diodes, and a two stage ring VCO. C网络是由在片对称螺旋型电感和差分二极管组成的。
On the premise that the problem be of axial symmetrical, the two-node conical ring element is used, then the geometrically nonlinear stiffness matrix of the element is formulated, while taking the separation of the pipe from the soil due to depression of the pipe into consideration. 在假定此问题为轴向对称的前提下,选用了二结点锥环元,并导出了这种单元的几何非线性刚度矩阵,同时还考虑了管壁向内凹陷时局部管与土脱离的现象。
General Solutions of Axial Symmetrical Ring Shells 轴对称圆环壳的一般解
A low-jitter clock generator for HDTV is designed with a high-speed phase/ frequency detector, a noise-suppressed charge pump and symmetrical load differential delay cells. Different noise models of the ring oscillator are discussed. 采用高速鉴频鉴相器、抗抖动电荷泵和差分对称负载延迟单元优化结构,综合分析环形振荡器各类噪声模型,设计了一种适用于HDTV的低抖动时钟电路。
A CW Nd: YVO4 ring laser is used as a pump source. Symmetrical four-mirror ring cavity configuration is adopted for the pump laser in the experiment. 泵浦源为Nd:YVO4激光器,采用的是对称四镜环形腔结构。
Their structures are symmetrical with two indole ring and a pyrrole ring. 它们的结构均是由两个吲哚环和一个吡咯环构成的对称的结构。
A symmetrical ring current was formed after the drift paths changed back to a closed configuration due to a decrease in tail convection. 对称环电流在磁尾对流电场减小,离子漂移路径变为封闭形态之后形成。