At a time when natural history was a valuable tool for discovery, Merian discovered facts about plants and insects that were not previously known.
在那时，自然史是很有价值的探索工具，梅里安发现了有关植物和昆虫的真相，这些真相从未为人所知。
The health district of Buea was not previously known to be a yellow fever endemic area.
以往并不清楚布埃亚卫生区属于黄热病流行地带。
It was not previously known what ammonites fed on-and, in truth, this evidence applies only to the animal in question, a species of Baculites.
此前，鹦鹉螺的食性并不为人所知，事实样，这一证据只能证明一种存在疑问的物种- - -杆菊石的某一物种的食性。
Individual microRNAs, which titrate the level of specific proteins generated by the cell, were not previously known to affect VEGF signaling or regulate angiogenesis.
此前还没有发现可以影响VEGF通路或调节血管发生过程的个别的微小rna, RNA可通过滴定细胞产生的特定蛋白水平来确定。
Some known ancient sites not previously thought to be part of Caracol are actually integrated with the massive city, the LiDAR data have revealed.
激光雷达数据显示，一些已知的以前被认为不是卡拉科尔一部分的古代遗址，实际上是与大规模城市是一体的。
Scientists said that it was still not clear why the vaccine, known as RV144 and actually comprising a combination of two previously tested vaccine candidates, had worked.
科学家说他们仍然不清楚为什么由之前两种测试过的候选疫苗组合而成的RV144疫苗能够奏效。
Heartland Payment Systems and Hannaford Brothers had previously and separately acknowledged the breaches, but the scope of the fraud had not been known.
哈特兰支付公司和汉纳·福特兄弟公司早前已经分别承认了被窃，但具体的被窃范围未知。
The virus is made of eight gene segments of known provenance but which have not previously been seen in this combination.
病毒由8个已知基因片段组成，但是组合方式却前所未见。
Some of the genes they found were already known or suspected to be associated with cancer, but most had not been linked to the disease previously.
这些发现的基因中有一小部分是已知或先前已经被怀疑与癌症相关的，但是绝大多数是以前没有发现的。
The other protein, called M-type potassium channel, although previously linked to neuronal activity, was not known to have a role in inflammatory pain.
而另一种蛋白质，称为M型钾通道，虽然先前了解的它和神经元活动有关，但并不知道它在感染引起的疼痛中起作用。
This means that the core temperatures were more than 200k higher than previously calculated, although the maximum core temperatures are not known.
这表明：虽然堆芯最高温度尚不得而知，但已意味着堆芯温度已比先前的计算值超过200多度。
This means that the core temperatures were more than 200k higher than previously calculated, although the maximum core temperatures are not known.
这表明：虽然堆芯最高温度尚不得而知，但已意味着堆芯温度已比先前的计算值超过200多度。
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