如果使带有同种的或亲缘关系相近质粒的细菌彼此杂交,质粒DNA的传递可受抑制,但这种称为表面排斥(surface exclusion),以便与不相容性相区别。不相容现象的机制尚未详细阐明,可能是在质粒 DNA复制的某个阶段起相互排斥的作用。
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具有离子化头的表面活性剂是产生排斥力的关键,这种排斥力可以对抗范德瓦尔斯力,从而使的一个肥皂泡薄膜稳定的存在。
Surfactants with ionizable heads are key to creating a repulsive force that counteracts the van der Waals attraction and thus stabilizes a soap film.
将氧排斥在外以防止在加热期间金属表面被氧化。
It prevents the oxidation of the metal surfaces during the heating operation by excluding oxygen.
分析了溶质在膜表面优先吸附和受排斥情况下的浓差极化现象。
The phenomena of concentration polarization under the conditions of preferential adsorption and repulsion on the surface of membrane were analysed.
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