Genetic marking is the equivalent of giving every book a title, table of contents and index-and with much greater speed and accuracy than any librarian could manage.
基因标记相当于给每本书起名，建立内容目录和索引，而且其速度和准确度是任何图书管理员都无法做到的。
2
None of the points in the table have an accuracy of more than 500 meters.
所有在数据表中的位置信息都没有精度超过500米的。
3
This method is simple and economical, and the accuracy of table no damage to life.