the best of nanking什么意思

the best of nanking南京最佳时期双语例句1The best incidence angle of N ion beam sputtering graphite target is 50 degree.石墨靶的最佳入射角为50°。 2Obviously, these two kinds of N application can't attain the aim to make the bestuse of N application and to oring danger effect on water environment.显然，这两种施肥方式难以达到氮肥充分利用的目的，并会对水环境带来严重的危害。