She never abandoned her attempts to plumb my innermost emotions.她从未放弃过探究我内心深处情感的尝试。Is this the first of many questions that will plumb the depths of stupidity?这个之后是不是还有众多如此愚蠢透顶的问题？...learning to wire and plumb the house ...
这种发生频率很高的、使次生渗透性能良好的岩体产生自封闭现象的反应就是泥岩化.The most frequent reaction causing the self - sealing of rocks with high secondary permeability is argillization.化学风化: 溶解 、 氧化 、 碳酸岩化 、 水合作用和水化作用.Chemical weathering: dissolution, ox...
Iso - amyl acetate was synthesized with ammonium ceric sulfate as catalyst neutralized acetic acid and iso - amyl alcohol.以硫酸铈铵为催化剂,乙酸和异 戊 醇为原料,合成乙酸异戊酯.N - amyl aldehyde is a main raw material in the synthesis of methyl ...