查询词典 mastodons

Often I have visited the New York Museum of Natural History to touch with my hands many of the objects there exhibited, but I have longed to see with my eyes the condensed history of the earth and its inhabitants displayed there - animals and the races of men pictured in their native environment; gigantic carcasses of dinosaurs and mastodons which roamed the earth long before man appeared, with his tiny stature and powerful brain, to conquer the animal kingdom; realistic presentations of the processes of development in animals, in man, and in the implements which man has used to fashion for himself a secure home on this planet; and a thousand and one other aspects of natural history.

当然，通过博物馆，我已多次去参观过纽约自然历史博物馆，用我手去触摸那里陈列的许多物件。但我渴望亲眼看到地球和那里陈列的地球上居民的浓缩历史－－－在他们自然环境里展示出的动物和人类种族；曾在人类出现之前，很早就在地球上漫游的巨大恐龙和柱牙象骨架，人类以他小巧的身材和强有力的大脑征服了动物王国；动物，人类和人类工具的发展过程的逼真展现，人类曾用这些工具在这个星球上来建造他们安全的家园，还有其它许许多多的自然历史方面。

Often I have visitedthe New York Museum of Natural History to touch with my hands many of theobjects there exhibited, but I have longed to see with my eyes the condensedhistory of the earth and its inhabitants displayed there - animals and theraces of men pictured in their native environment; gigantic carcasses ofdinosaurs and mastodons which roamed the earth long before man appeared, withhis tiny stature and powerful brain, to conquer the animal kingdom; realisticpresentations of the processes of development in animals, in man, and in theimplements which man has used to fashion for himself a secure home on thisplanet; and a thousand and one other aspects of natural history.

但我渴望亲眼看到地球和那里陈列的地球上居民的浓缩历史－－－在他们自然环境里展示出的动物和人类种族；曾在人类出现之前，很早就在地球上漫游的巨大恐龙和柱牙象骨架，人类以他小巧的身材和强有力的大脑征服了动物王国；动物，人类和人类工具的发展过程的逼真展现，人类曾用这些工具在这个星球上来建造他们安全的家园，还有其它许许多多的自然历史方面。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。