截叶苜蓿是继拟南芥和水稻之后第三种完全对其基因组进行测序的植物。
Medicago truncatula is the third plant to have its genome completely sequenced after Arabidopsis and rice.
17世纪下半叶，英国成为继意大利之后的第二个世界科学活动中心。
In the 2nd half of the 17th century, England became the second world-wide scientific activity center after Italy.
变叶木的品种不同 ，其愈伤组织的生长及再生植株能力 ，在继代培养中后期表现出明显的品种特异性 。
For different varieties of variegated leafcroton, the growing capacity of callus and plant regeneration displayed evident varietal specificities in late stage of subcultures.
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