不等边四边形 meaning in Chinese

trapezium
trapezoid

Connectors with assessed quality , for use in d . c . low - frequency analogue and in digital high - speed data applications . part 3 : rectangular connectors . section 101 : detail specification for a range of shielded connectors with trapezoidal shaped shells and non - removable rectangular contacts on a 1 , 27 mm x 2 , 54 mm centre - line
经质量评估的直流低频模拟和数字高速数据设备用连接器.第3部分:矩形连接器.第101节:连接在1 . 27 mm x 2 . 54 mm中心线上的带不等边四边形外壳或固定矩形触点屏蔽连接器范围的详细规范
Connectors for use in d . c . , low frequencey analogue and digital high speed data applications - part 3 - 100 : rectangular connectors with assessed quality - detail specification for a range of shielded connectors with trapezoidal - shaped shells and non - removable ribbon contacts on a 1 , 27 mm double row
直流低频模拟设备和数字高速数据应用设备用连接器.第3 - 100部分:经质量评估的矩形连接器.连接在1 . 27 mm双列带上的带不等边四边形外壳和固定带状触点屏蔽连接器范围的详细规范