|
|
| 81. | square root |
| 二次根 |
|
|
| | |
| 82. | frequency square |
| 频率正方 |
|
|
| | |
| 83. | precision square |
| 精密直角尺 |
|
|
| | |
| 84. | Square bend |
| 直角弯道 |
|
|
| | |
| 85. | carpenter's square |
| 勾尺，角尺，曲尺 |
|
|
| | |
| 86. | Tian'anmen Square |
| 天安门广场 |
|
|
| | |
| 87. | Cartesian square |
| 笛卡尔方形 |
|
|
| | |
| 88. | set square |
| 三角尺 |
|
|
| | |
| 89. | cylindrical square |
| 圆柱直角规 |
|
|
| | |
| 90. | combination square |
| 组合角尺 |
|
|
| | |