您要查找的是不是：
- circular piston source 圆形活塞声源
- built-up circular piston sound source 组合圆形活塞声源
- Through comparison, it shows that at the same value of frequency and size, the far field of hexagonal piston is more uniform than that of circular piston. 结果表明，与圆形、方形活塞的辐射远场相比，在声波频率、活塞面积相同条件下，六边形活塞声源的辐射远场相对比较均匀。
- Acoustic source of plane circular pistons 圆形声源
- The directivity of acoustic field radiated from ring piston source 环状活塞声源辐射声场指向性研究
- All the apprentices rushed to help fit the piston. 徒工们都跑过来帮助装活塞。
- The news comes from a reliable source. 这消息来自可靠的来源。
- Get lathe No.9 set to turn the new piston. 把九号车床调好来车这个新活塞。
- Design Analysis and Simulation Research of Ring Piston Source System 振速变化的环形活塞声源系统的设计分析与仿真研究
- We can compute the circular area with radius. 我们能用半径计算出圆的面积。
- The full moon has a circular form. 满月呈圆形。
- The piston seems ok. Maybe something else is wrong. 活塞似乎没问题。可能别的什么东西坏了。
- I'm not satisfied with his circular explanation. 我不满意他拐弯抹角的解释。
- The full moon has a circular shape. 满月呈圆形。
- The organization issues a circular every month. 该组织每月发一份通告。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- Numerical Investigation of Micro-pressure Waves Radiated from a Tunnel Exit Based on the Model of Radiating of Circular Piston in the Infinite Plat 基于无限大障板圆形活塞辐射原理的隧道微压波计算方法
- Something of circular form; a circle or an orbit. 圆形物体圆形物体; 圆圈或环形轨道
- An instrument that measures circular arcs. 圆弧测定器一种用于测定圆弧的仪器
