Depending on how the researchers calibrated their clock, the data point to an origin of domesticated rice around 8, 200 years ago.
通过科研人员校对“分子钟”，数据显示出该驯化水稻在大约8200年前的原始稻种。
2
Optional dust filter? Individually pointcalibrated? Combination humidity, temperature transmitters available? Threaded or wall box mount? High quality at low cost.
可供选择的灰尘过滤器？单独点校准？可使用湿度，温度传感器？螺纹安装和墙面安装？高质量低成本。
3
By using calibrated image, it can measure plane absolute displacement of worktable automatically via feature point extraction and gray vector matching.