Contact us
Choose a category below so we can get back to you as quickly as possible.
設陸地X公頃,水面3X公頃 3X+X=290 X=72.5 所以陸地72.5公頃 水面3×72.5=217.5公頃
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.