Two-EC双变量误差修正twonum.二；两个two-dimensional crossed immunoelectrophoresis二维交叉免疫电泳Two-photon laser confocal scanning microscope双光子激光共焦扫描显微镜two-mode cross secondorder correlation degree模间二阶相干度two-dimensional infrared correlation analysis二维红外相关分析two-path and load-share sun-geared system齿轮中心双流传动系统two-class kernel Fisher discriminant analysis两类核Fisher鉴别分析Two-Lumen Central Venous Catheterization kits双腔中心静脉穿刺包Two-dimensional sensor data fusion technology二维传感器信息融合技术Two-Dimensional Histogram ObliqueSegmentationtwo-dimensional intensity-modulated display亮度调制平面显示器