average groundwater leveldoi:10.1007/978-3-642-41714-6_13390average groundwater level ● mittlerer Grundwasserhorizont maverage groundwater levelmSpringer, Berlin, Heidelberg
The densities of the terrestrial planets average about 5 times the density of water, whereas the Jovian planets have densities that average only 1.5 times the density of water. 问题 句子分析(俗称“长难句分析”)是训练提高基础阅读能力的有效手段。我们通过对托福(TOEFL)、雅思(IELTS)、GRE、考研以及四...