秘鲁人的

Enduring prolonged sub-zero temperatures is a matter of course for Peru's indigenous mountain people, many of whom live at more than 3,000 metres above sea level.

对于秘鲁的山区原住民来说，他们不得不忍受越来越长的零下低温天气。而他们中的许多人住在海拔3000多米高的山上。

Demand for vicua meat and wool nearly wiped out the species, but many enjoy protection in Peru's Pampa Galeras Reserve, such as this trio.

需求 vicua肉类和绒毛几乎覆没的物种，但许多人享有的保护在秘鲁的南美大草原Galeras储备，像这样的三重奏。

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。