| adjustable head Tsquare | 活头丁字尺 |
| Bartlett's chi-square test | 巴特利特X2检验 |
| caliper square | 游标规 |
| chi-square criterion | χ2检验 |
| chi-square distribution | χ2分布 |
| chi-square test | χ2检验 |
| damped least square method | 阻尼最小二乘法 |
| electrically square | 方形检波器组合 |
| error of mean square | 均方误差 |
| generalized least square method | 广义最小二乘方 |
| hollow square | 消波混凝土块体 |
| integrated square error | 积分平方误差 |
| inverse square law | 平方反比律 |
| inverse square | 负二次方 |
| iterative least squares inversion | 迭代最小平方反演 |
| iterative least squares method | 迭代最小平方法 |
| iterative least squares | 迭代最小平方 |
| iterative reweighted least squares | 迭代再加权最小平方 |
| least square approximation | 最小二乘方逼近 |
| least square fit | 最小二乘方拟合 |
| least square method | 最小平方法 |
| least square regression | 最小二乘方回归 |
| least square residual | 最小二乘方剩余法 |
| least square | 最小二乘方 |
| least squares adjustment | 最小二乘法平差 |
| least squares cubic method | 最小二乘立方法 |
| least squares fitting | 最小二乘方拟合 |
| least squares prediction | 最小二乘方预测 |
| least-mean-square-error criterion | 最小均方差准则 |
| least-square best fit | 最小二乘方最佳拟合 |
| least-square equation | 最小二乘方等式 |
| least-square filtering | 最小平方滤波 |
| least-square inversion | 最小平方反演 |
| least-squares refinement | 最小二乘法修正 |
| left-hand square thread | 左旋方形螺纹 |
| mean square deviation | 均方差 |
| mean square dip | 均方地层倾角 |
| mean square error | 均方误差 |
| mean square modulus | 均方模 |
| mean square regression | 均方回归 |
| mean square root | 均方根 |
| mean square slowing-down length | 均方慢化长度 |
| mean square value | 均方值 |
| mean square | 均方 |
| mean-square channel diameter | 均方孔道直径 |
| method of least square | 最小二乘法 |
| middle square method | 平方取中法 |
| normalized mean square error | 规范均方差 |
| one-sided least-squares inverse filter | 单边最小平方反滤波器 |
| optimum least-squares filter | 最佳最小平方滤波器 |
| out of square | 不成直角 |
| per square inch | 每平方英寸 |
| perfect square | 完全平方 |
| pounds per square inch | 磅英寸2 |
| reciprocal square root | 平方根倒数 |
| root mean square | 均方根 |
| root-mean-square criterion | 均方根判别准则 |
| root-mean-square deviation | 均方根差 |
| root-mean-square error | 均方根误差 |
| root-mean-square misfit | 均方根拟合差 |
| root-mean-square value | 均方根值 |
| root-mean-square velocity | 均方根速度 |
| rotated square pitch | 管子正方形错排 |
| seisquare | 方网地震采集系统 |
| set square | 三角板 |
| smoothness-contrained least-squares inverse technique | 平滑度约束的最小平方反演法 |
| square bend | 直角弯头 |
| square bent | 直角弯头 |
| square body | 平行中体 |
| square boundary | 方形边界 |
| square bracket | 方括号 |
| square crossing | 垂直交叉 |
| square drill collar | 方钻铤 |
| square elbow | 直角弯头 |
| square error | 均方误差 |
| square file | 方锉 |
| square grid | 方格网 |
| square groove | I形坡口 |
| square head bolt | 方头螺栓 |
| square jackscrew | 矩形起重螺杆 |
| square joint | 方接头 |
| square kelly | 方钻杆 |
| square key | 方键 |
| square lattice | 方形网格 |
| square map | 方格网地图 |
| square matrix | 方阵 |
| square mesh | 正方网格 |
| square meter | 平方米 |
| square net | 方形网格 |
| square network | 矩形网络 |
| square node | 方形网格 |
| square opening | 方口 |
| square paper | 方格纸 |
| square pattern | 方形井网 |
| square pulse | 方形脉冲 |
| square root | 平方根 |
| square section | 横切面 |
| square shaft | 方轴 |
| square shear | 龙门剪床 |
| square size | 对边宽 |
| square stabilizer | 方形稳定器 |
| square thread | 矩形螺纹 |
| square to | 成直角 |
| square washer | 方垫圈 |
| square wave | 方波 |
| square wave-form oscillator | 方波振荡器；矩形波发生器 |
| square | 正方形；平方；直角尺；面积单位；方形广场；正方形的 |
| square-edged orifice | 直角铣孔流量计孔板 |
| square-hole cage nut | 方孔锁紧螺母 |
| square-law detection | 平方律检测 |
| square-mesh screen | 方孔筛网 |
| square-topped pulse | 平顶脉冲 |
| squareness | 垂直度 |
| squarer | 矩形脉冲发生器；平方电路；矩形波整形电路 |
| standard damped least-squares method | 标准阻尼最小二乘方法 |
| sum squared deviation | 和平方离差 |
| swing square | 两根圆钻铤之间的方钻铤 |
| T-square | 丁字尺 |
| tandem squares | 串联方钻铤 |
| try square | 直角尺 |
| two-sided least-squares inverse filters | 双边最小平方反滤波器 |
| weighted least-squares method | 加权最小二乘法 |
| weighted mean square | 加权均方 |
| wrench square | 扣钳方颈 |