The existence of carbonyl group in structure seems to be a factor that favors the formation of quasi-molecular ion (QMI) or other adduct molecular ion (OAMI) in positive mode.
化合物结构中羰基的存在似有利于化合物在正离子模式下形成准分子离子或其它分子加和离子。
Structure is the main factor which controls the sedimentary basin formation.
构造活动是控制沉积盆地形成的主要因素。
Soil organic matters are an important factor affecting the formation of soil structure.
土壤有机质是形成土壤结构的重要因素。
Soil organic matters are an important factor affecting the formation of soil structure.
土壤有机质是形成土壤结构的重要因素。
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