They also worked out an upward deduction equation in formpointheight h-2 to conquer difficulties in surveying form points, and increase the efficiency of fores.
为了克服对形点的观测困难，该文又提出了形点高的推定式，便于发挥外业调查的工作效率。
2
In the Chinese culture, 12 years form a zodiac cycle. In this sense, the Boao Forum has reached a new starting point and I hope it will scale an even greater height.