 |
| Chinese | English |
| 导求出一个公式方程，函数，解 | develop a formula (an equation, a function, a solution) |
| 手持式微音器传声器 | hand microphone |
| 油壶式继电器 | dashpot relay |
|
| Chinese | English |
| 导求出一个公式方程，函数，解 | develop a formula (an equation, a function, a solution) |
| 手持式微音器传声器 | hand microphone |
| 油壶式继电器 | dashpot relay |