对油葵子叶外植体在含有不同激素浓度的培养基上进行了诱导、分化及成苗的研究，建立起一套完整的再生体系。
The factors that influence callus induction, shoot differentiation and growth of Helianthus annuus cotyledon were studied and an efficient regeneration system was established .
讨论了粘土胶驱油体系的成胶机理、驱油机理和对粘土胶驱油的影响因素。
It also discusses the gelling mechanism, oil displacement mechanisms and the factors influencing the oil displacement efficiency by clay gel.
良好的油源条件、独特的输导体系和成藏动力是控制东营凹陷岩性油气藏成藏的主要因素。
For Dongying depression, the main factors to control hydrocarbon accumulation in lithologic reservoirs are good source rocks, special carriers and pathways and adequate accumulation dynamic.
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