Fold a paper boat, drifting into the distance, take away my sadness. To continue to drift to continue to bar street, the heart is a boundless ocean Wang.
折一纸船，飘向远方，带走我的哀愁。继续漂泊，继续流浪吧，心是一汪无际的海洋。
2
The distance between people, will bar is too close to people and far will wounding.
人和人之间的距离，太近了会扎人，太远了会伤人。
3
The paper introduces a way of measuring the deflection involute spline, and the calculation of diameter and distance of the measuring bar.