The direct gene transfer systems involved the chemical method (PEG), electroporation, microinjection, particle bombardment, pollen-mediated gene transfer and other systems using various vectors.
阐述了化学导入法(PEG)、电穿孔法、注射法，粒子轰击法、花粉管萌导法及使用其它载体系统的成功实例。
In this paper, method of PEG-20M and OV-101 Stainless Capilliary Column on GC-MS is adopted to analyse and study the chemical components of essential oil of Litsea cubeba Pers. in Jiangxi province.
本文介绍用PEG - 20 M、OV- 101毛细管柱分离，以气相色谱与质谱联用检测的方法对我省山苍子精油的化学成分进行分析研究。
Introduced different molecular weight PEG in chitosan by solvent casting method, the blending system had good compatibility, reached homogeneous phase of the thermodynamic level.
用溶液浇铸法在壳聚糖中引入的不同分子量的聚乙二醇，共混体系相容性好，实现了热力学水平上的均相。
Combining practice engineering, author discusses the construction method and the technique measure of peg to drill hole and to press mortar.
本文作者结合工程实际，论述了钻孔压浆桩的施工方法及技术措施。
PEG should be considered when enteral feeding is necessary for longer than 3-4 weeks in difficulty eating patients. However, this method is still not widely used in China.
进食困难患者肠内营养置管喂养超过3 ~4周以上就应考虑PEG，但由于诸多原因该方法在国内使用尚不普遍。
Compares the method of cell fusion induced by laser microbeam with induced by virus, PEG, electric field pulse.
比较了微束激光融合法与病毒法，PEG法，电融合法。
Method: PEG-20M capillary column and the best analytical condition were used and determined by area percent method.
方法：选用PEG 2 0M毛细管柱及最佳分析条件，用面积归一化法测定。
With 24 maize inbred lines, by the injuring rates of sprout length and radical length were evaluated drought tolerance using PEG-6000 to simulating water stress method at germination stage;
本研究以24份玉米自交系为材料，在玉米萌发期通过PEG-6000（聚乙二醇-6000）模拟干旱胁迫的方法，以胚芽长与胚根长伤害率来评价萌发期的耐旱性；
The contents of multiethylene-glycol are analyzed with PEG quartz in capillary column temperature programmed method. This kind of method is simple, rapid and can be repeated well.
采用PEG石英毛细管柱程序升温色谱分析多甘醇含量。方法简便快速，重复性好。
The experiment processing results demonstrate that the method can not only sufficiently attenuate the peg-leg multiples but also eliminate the long-period residual multiples to a satisfactory effect.
实验处理的结果表明：该方法不仅对微屈多次波有效，而且对残余的长周期鸣震多次波也可达到令人满意的压制效果。
Conclusion: the method is suitable for the peptide mapping of TCS, and it also provides a selective analysis method for TCS protein drug by PEG modification.
结论：本法适应于天花粉蛋白药物的肽谱分析，同时也为分析PEG修饰天花粉蛋白药物肽图谱提供了可以借鉴定手段。
A stable amorphous calcium phosphate (ACP) was prepared by a wet chemical method at a low temperature in the presence of poly(ethylene glycol) (PEG).
采用聚乙二醇（PEG）先与钙反应后，再与磷源溶液反应，在低温环境中制得无定形磷酸钙。
Methods Etodolac solid dispersion was prepared with PEG as carrier by solvent-fusion method and identified by differential thermal analysis.
方法选用聚乙二醇为载体，采用溶剂-熔融法制备依托度酸固体分散体，通过差热分析对固体分散体进行鉴定。
Method: Bomeolum Syntheticum and PEG 6000 mixing preparative solid dispersion and packed capsules, toxicity was tested.
方法：将冰片用水溶性辅料聚乙二醇6000制成固体分散体，并填装入胶囊，进行毒理试验。
METHODS Preparing the solid dispersion by melting method at different drug-to-PEG ratios with different PEG moleculars and studying the preparation with dissolution rate in vitro and DSC method.
方法以不同分子量不同比例的聚乙二醇为载体，以熔融法制备固体分散体，并进行体外溶出度研究和DSC扫描。
Method: carvedilol solid dispersions were prepared by solvent-melting and coevaporation methods with PEG-6000 and PVP as carriers, the study on the dissolution was conducted in vitro.
方法：以聚乙烯吡咯烷酮（PVP）、聚乙二醇-6000（PEG-6000）为载体，溶剂法和溶剂熔融法制备固体分散体，并进行体外溶出度研究。
Method An iliac bone peg wrapped with semilunar skin flap taken from the fibular side of great toe is applied to breach the defcet.
方法采用吻合血管的趾腓侧半月形皮瓣及髂骨移植完成桥接再植。
Method An iliac bone peg wrapped with semilunar skin flap taken from the fibular side of great toe is applied to breach the defcet.
方法采用吻合血管的趾腓侧半月形皮瓣及髂骨移植完成桥接再植。
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