1) circular membrane
圆形振膜
1.
Based on the simplified model of circular membrane with minor altitude, the natural frequency, resonance frequency, frequency response and the relationship among them are discussed.
基于微小振幅的圆形振膜简化模型,分析了圆形振膜的固有频率、谐振、频率、频率响应以及它们之间的关系,并据此满足实际应用中对频响的要求。
2) circular
圆形
1.
Researches on heave of circular deep foundation pits with super diameters;
大直径圆形深基坑基底回弹问题研究
2.
Principle of shaft large diameter circular homogenizing silo and characteristic analysis.;
立式大直径圆形均化库的原理及特点分析
3.
Analyzing the working condition of a circular cage collar made from PE pipes,we come to the conclusion that the bending fatigue of the pipe in the radial direction is the main factor and the circumference of the cage collar is constant during deformation.
以圆形框架在直径方向产生20%的压缩变形为极端条件,通过几点假设,将工况条件向试验条件进行转化,提出1种圆形网箱框架用PE管材的弯曲疲劳试验方法。
3) circle
圆形
1.
Through comparing and analyzing several selective projects: rectangle (square), special hexagon and circle, a conclusion is made that in the wireless blind-chess guidin.
文中论述了该系统中的盲棋子空域的划分,通过对几种可选方案:矩形(正方形)、正六边形、圆形的分析和比较,得出了在无线电盲棋导航系统中以正方形作为子空域最优。
2.
Circle in the Expression of Landscape Design;
无论是在传统亦或是现代、东方亦或是西方,圆形在各类设计作品中都大量的存在,它的出现常常伴随着神秘的色彩,并被人们赋予了更多丰富的内涵。
4) elliptic(circular)ring beam
椭圆形（圆形）环梁
5) rotundity cover
圆形盖
1.
By analyzing and comparing the both punching technology for the rotundity cover on container, a new compound process of the falling-drawing-curlling was adopted by analyzing the rotundity cover's shape and material and size.
分析比较了容器圆形盖的新旧两种冲压工艺,根据圆形盖的形状、尺寸及其材料,经过工艺分析及计算,改用落料-拉延-翻边复合工艺,可以明显提高制件质量、生产效率。
6) circular flue
圆形烟道
1.
In view of problems existing in velocity of flow monitoring points collocation in circular flue,using hydrodynamics theory to analyze and optimize,one monitoring point at 0.
针对圆形烟道流速监测点布置存在的问题,用流体力学理论进行分析、优化,在确定采样断面后,在距采样孔0。
参考词条
补充资料：振膜式传感器
以圆形恒弹性合金膜片为敏感元件的谐振式传感器。膜片的固有振动频率随膜片上所受压力的变化而变化，通过相应的测量电路就可获得与被测压力成一定关系的频率信号。振膜式传感器广泛用于压力测量，它由空腔、压力膜片、振动膜片、激励线圈、拾振线圈和放大振荡电路组成(见图)。在空腔受压力影响时,压力膜片即发生变形,装在压力膜片支架上的振膜则因支架角度改变而发生刚度变化。膜片的振动频率取决于振膜的刚度、压力膜片和支架的刚度。在振膜的两侧分别放置激励线圈和拾振线圈。工作时，激励线圈接通交变电流而使膜片产生振动，拾振线圈则将所感应的振动信号送往放大振荡电路，该信号经放大后又正反馈给激励线圈，使振膜保持它固有频率的振动。激励线圈和拾振线圈还可以用两个压电元件代替，其结构也可做成使振膜直接感受被测压力。作为拾振器的压电元件利用正压电效应将振动信号送往放大器，该信号经放大后又正反馈到作为激振器的压电元件，利用逆压电效应产生振动激励以维持膜片的振动。为提高稳定性，压电元件的固有振荡频率应远离振膜的固有振荡频率，并设置高频衰减网络抑制高频振荡。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。