Specifying a new input coordinate position by echoing a line stretching from some defined position (often the last position) to the current one. The line appears to stretch like a rubber band from the origin to the current position.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。