A large number of dada are obtained in all kinds space circumstance experiments. 並在各種空間環境模擬實驗中得到了大量的實驗數據。
The space environment had stimulating mitosis action on root tip cells.Other mutagens had inhibiting mitosis action. 空間環境促進根尖細胞有絲分裂活動,其它誘變因素均不同程度地抑制根尖細胞有絲分裂活動。