The extrusion of silica - rich lava, the Rooiberg felsite, occurred on a grand scale.富于 硅氧 的岩流及罗依山霏细岩的喷出作用占据了广大面积.The ore bodies are confined to Yanshanian metamorphosed rhyolite porphyry and felsite.矿体赋存在燕山期变质流纹斑岩、霏细岩中....
Many fungi can reproduce asexually.许多真菌可以无性繁殖。In asexually propagated species, variability resulting from recombination may be severely limited, or even precluded.在无性繁殖物种中, 重组产生的变异可能受到严重限制, 甚至受到阻止.The swelling produced b...
It exists in dreams rather than actuality.它存在于梦境而非现实中。The building looked as impressive in actuality as it did in photographs.这栋大楼外观雄伟，与照片中所见一模一样。A trip to the moon is now an actuality.登月旅行现已成为事实....