穿过地理梯度, 莱文斯预料有分布区不重叠的小种或近群种.Across geographic gradients, Levins expects allopatric races or coenospecies exist.航空磁梯度仪在六十年代中期交付使用.The airborne magnetic gradiometer came into use in the middle 1960 s.这说明水动力条件具有很明显的位能梯度.Thi...
The report is underpinned by extensive research.这份报告以广泛的研究为基础。A surveyor said that the problems were caused by subsidence and the house needed to be underpinned.一名勘测员说是地面下陷导致了这些问题出现，房子需要加固地基。The statue of Diana was under...
In spite of all this discomforts, the Curies worked on.居里夫妇不顾这一切困难不便, 继续工作着....reducing the physical discomforts and difficulties faced by women.减少女性身体上的不适和不便Travellers in space have to endure many discomforts in their r...
Gooch crucibles or similar filters are used for such measurements.在这样的测定中,采用Gooch坩埚或类似的过滤器.Have you really measured the world by scrutinies, or through alembics and crucibles?那么, 这是否因为您是从蒸馏器和坩埚上来研究人类的 呢 ?The crucibles of...