| 1. | Is the device configured for two wire or four wire systems 设备是配置为二线制或四线制的系统吗 |
| 2. | Continue normal test mode four wire measurement 4线式测试方式 |
| 3. | One wireless microphone tie - clip or hand held and four wired microphones 无线咪(呔夹式或手提式)一支 |
| 4. | Three wires for screw thread measuring and four wires for screw thread measuring 螺纹测量用三线法和螺纹测量用四线法 |
| 5. | D - 4w three dimension - four wire 三度四线制 |
| 6. | Three phase four wire system 三相四线制 |
| 7. | Two phase four wire system 双两相四线制 |
| 8. | Three dimension four wire 三度四线制 |
| 9. | A two wire system then requires two twisted pair , and a four wire system requires three twisted pair 一个二线制系统两个双绞双绞线对,一个四线制系统需要三个双绞线对。 |
| 10. | In four wire circuits , the two wires associated with the " go " channel form one " side circuit " , and those associated with the " return " channel form another 在四线电路中,与“去程”通道相关联的两线就形成了一个“半边电路” ,而与“回程”通道相关联的两线构成了另一个“半边电路” 。 |