以二年生草本花卉黑心菊为材料，研究了温室环境对其生长的影响。
The influence of greenhouse environment on the growth of in rudbeckia hirta a biennial herbaceous flower was studied.
不过，他的妻子王菊生说自己并不感到意外。“那些年月发生的事情，特别是50年代到60年代，大部分都是错误的。”
His wife, Wang Jusheng, however, said she was not surprised: "What happened in those years, especially the late 1950s and 1960s, were mostly errors."
灰毛菊属的任何一种植物，产于欧洲南部，具有单生包片或银色的头状花序，管状花呈浅紫色。
Any plant of the genus xeranthemum native to southern europe having chaffy or silvery flower heads with purplish tubular flowers.
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