No smoking , no eating and no drinking . maintain environmental hygiene and cleaness 一、场内严禁吸烟和吃零食、喝饮料,保持环境卫生。
High adhesion and no staining residue free removal . assorted many colors available . widely used in bundling , strapping , wrapping , jointing sealing , color code , the cleaness of wooden blanket , asbestos and etc 粘性好,耐候性好,有多种颜色可供选择。用于非关键场合的包装,捆扎,封口等;还可用于枳识颜色以及毛毯、石棉等的清洁。
Characteristics : durabce , high temperature resisting , high voctage resisting , antisepsis and envicromentally protective . getting rid of poor factors ( non - cleaness , aging , unstasicity , disjoints and blow up ) caused by soft rubber joints 具有:耐用、耐高温、耐高压、防腐、保护环境的优点,取代了橡胶软接头所带来的不卫生、易老化、耐压不稳定、易脱层撕裂、爆破等不良因素,解决了系统运行中的后顾之忧。
High concentration of salts such as cacl2and mncl2 reduced significantly the efficiency of competence cells . the most important factor was the start ph value , incubation time and the cleaness of the container used . the optimum conditions for the preparation of competence cells with high efficiency were the following : ( 1 ) start ph value in medium was 7 . 0 结果表明:在感受态细胞制备过程中高浓度的二价金属离子( mn ~ ( 2 + ) 、 mg ~ ( 2 + ) )对感受态细胞制备有害;不同的培养基对感受态细胞制备也有不同的影响;影响最大的是培养基的起始ph 、培养时间和所用的器材的清洁度。