acid humus是什么意思

用法例句

A research on acid hot-pressure oxidation pretreatment of a certain refractory gold concentrate;

某难处理金精矿的酸性热压氧化预处理研究

A new technology of bright acidic electroless Ni-P alloy plating;

一种新型酸性光亮化学镀镍-磷合金技术

Analyzing the Cause of Erxun's Acid Water and Resolving Way;

二循水质酸性原因分析及对策

Analysis of one trouble in acidic potassium chloride zinc plating;

酸性氯化钾镀锌故障分析

Determination of chloric ions in acidic copper plating;

酸性硫酸铜镀液中氯离子的测定

Study on complexants of acidic electroless nickel plating at middle temperature;

中温酸性化学镀镍络合剂的研究

Studies on IR Spectroscopy and Quantum Chemical Calculation of Chloroaluminate Ionic Liquids Acidity;

氯铝酸离子液体酸性的红外光谱探针和量子化学研究

Studies on Acidity of Chloroaluminate Ionic Liquids and Its Catalytic Performance for Alkylation of Benzene with Long-Chain Alkenes;

氯铝酸离子液体的酸性及其催化烷基化反应研究

Effect of Support Acidity on Selective Catalytic Reduction of NO by C_3H_6 over Cu-based Pillared Clay Catalyst;

载体酸性对铜基交联黏土催化剂上C_3H_6选择性催化还原NO反应的影响

Durability study on rock and concrete under acid environment;

酸性环境下岩石及混凝土的耐久性分析

A chemical damage model of sandstone in acid environment;

酸性环境中钙质胶结砂岩的化学损伤模型

During growth or storage in acid environment,cells may lose viability resulting in the decrease of culture activity.

确定了在菌种的生长繁殖与保存中,酸性环境会使菌体内不能维持近中性pH值,从而降低其存活的可能性,降低发酵剂的活力。