 |
| |||
| 空〔备用〕层 | |||
| 绝对平面 | |||
| 绝对水平; 绝对标高 | |||
| 固定水平 | |||
| 备用层; 静态; 无信号电平 | |||
| 空层 | |||
| 含量极少或不含硬焦油脂的屋面沥青; 零电平; 绝对高程; 静态电平 | |||
| dead level: 10 phrases in 6 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Desert science | 1 |
| Hydroelectric power stations | 1 |
| Sports | 1 |
| Technology | 5 |
|
| |||
| 空〔备用〕层 | |||
| 绝对平面 | |||
| 绝对水平; 绝对标高 | |||
| 固定水平 | |||
| 备用层; 静态; 无信号电平 | |||
| 空层 | |||
| 含量极少或不含硬焦油脂的屋面沥青; 零电平; 绝对高程; 静态电平 | |||
| dead level: 10 phrases in 6 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Desert science | 1 |
| Hydroelectric power stations | 1 |
| Sports | 1 |
| Technology | 5 |