自然的发展

The short blooming period hinders the development of the floricultural industry of moutan peonies.

自然花期较短严重影响了牡丹产业的。

This paper is aimed at presenting the authors' study and analysis on the economic system for a virtuous circulation mode with teletube glass scraps in China by using the method of system analysis.

年来,我国CRT显像管制造行业迅速,但制造显像管所需的大量优质石和化工原料的开采和合成过程却破坏了自然生态环,还造成环。