The fossils at Dinosaur Cove are embedded in hard sandstones.恐龙峡谷中的化石都嵌在坚硬的砂岩中。The largest brain possessed by any dinosaur weighed about a kilogram.最大的恐龙脑子大约有一公斤重.In Alberta and Saskatchewan there are many hills where di...
Vapour phase chromatography has rapidly become one of the most successful analytical techniques.气相色谱法已经迅速成为最成功的分析方法之一.Lectins in haemolymph of Sarcophaga peregrina larvae and pupa were purified by affinity chromatography...