Support the body by the high stiffness of the porous air bearings for static air flotation support, using as a porous ceramic material.
支撑体由刚度高的多孔质静压空气轴承提供气浮支撑，采用如陶瓷类的多孔质体材料。PDs are involved extensively in a plants life by mediating symplastic transport of a wide range of ions and molecules.
胞间连丝通过调控许多离子和分子的共质体运输而广泛地参与植物的生命活动。The invention relates to a lipid prodrug of a drug containing guanidino and pharmacology thereof.
本发明涉及含胍基的药物的脂质前药及其药质体。A parameter sensitive to thermal evolution, e. g. vitrinite reflectance, is measured on a certain number of samples from a well.
对热演化敏感的参数，例如，镜质体反射率，可从一口井的一定数量岩样进行测定。Transfer of a segment of DNA to a new position on the same or another chromosome , plasmid, or cell .
换位把脱氧核糖核酸的一个片断转移到同一个或另外的染色体、质体或细胞上的一个新位置上。Daughter nuclei moved towards the egg surface in the form of cometic energids to form blastoderm during the cleavage.
卵裂时子核以“彗星”状活质体向卵表面迁移，形成胚盘；Both ion diffusion and transport of ions to the root surface by mass flow appear to be dependent on soil moisture content.
离子扩散和通过质体流动把离子运送到根表面，看来似乎都取决于土壤的含水量。One plasmid isolated from bacteria in a sewage treatment plant was found to encode nine different antibiotic-resistance genes.
有个从污水处理厂分离出的细菌质体，就携带了九种抵抗抗生素的基因。The maturity of organic substance can be expressed by the time-temperature index(TTI value)and vitrinite reflectance (R0).
有机质的成熟度可用时间温度指数（TTI值）和镜质体反射率（R0）来表示。