1、We brought forward the design polestar of purple clay teapot.
2、Captain: We have trouble now. The polestar is our only navigator.
3、Discussion on polestar and principle of the legislation of Mongolia in Qing dynasty;
4、Serving as a guide, as a polestar or a pole of the earth.
5、"The earliest instrument for determining latitude was the quadrant, which measured the altitude of the polestar or the noonday sun."
6、The earliest instrument for determining latitude was the quadrant, which measured the altitude of the polestar or the noonday sun.
7、The sports training polestar is a basis for norm sports training operation, and sports training operation principle is a guide for improving achievenment.
