Tianjin March 18 (xinhua) (reporter Zhou Runjian) "two don't pay for gas, the spring rain line." "Chinese astronomical calendar display", on March 20, 18 when 29 points for the "vernal equinox" lunar 24 solar terms, this season, spring flowers, willow green, the grass sprout out of the earth, yellow peach li bai chun. In the Gregorian calendar every year on March 21, or so, sun reaches zero, longitude is the vernal equinox. Points, half also, half of the day for the spring, so the call...