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- Trifluoroacetic acid (TFA) is a commonly used ion-pair reagent in RP-HPLC to improve peak shape and enhance separation efficiency of peptides. 在逆相液相层析分离胜肽上常会添加少量的三氟醋酸(TFA),利用它与带正电的胜肽有离子对效应,会提升胜肽的疏水性,进而增加胜肽与静相之间的作用力,使分析物层析峰较对称,解析度较高。
- The steel is then ready to be cast into different shape and size. 这时的钢水可以被浇铸成各种大小不同的形状。
- Maintain and enhance self-esteem of the employee. 增强人员自尊心,培育人员自信心。
- Eliminate and enhance rough pore, acne and scar. 消除及改善毛孔粗大、痤疮疤痕。
- Of definite shape and volume; not liquid or gaseous. 固体的固定的形状和体积的; 不是液体或气体的
- The seeds also differ in shape and sculpture. 种子的形状与花纹亦有不同。
- My knee is bent out of shape and I can't move it. 我的膝盖有点畸形,动不了。
- To improve and enhance regional and international collaboration. 改善和促进区内和国际合作。
- Some pies are oval in shape and some are round. 有些馅饼是椭圆形的,有些则是圆形的。
- Maintain and enhance the stability of the global energy supply. 维护和加强全球能源的供应稳定。
- He had noticed her contracted shape and her eyes. 他注意她那消沉的样子和她的眼神。
- Further perfect software system and enhance service effectiveness. 进一步完善软件系统,提高服务效率。
- Select a shape and press an arrow key. 选择一个形状,然后按箭头键。
- Reduce eyestrain, reduce glare and enhance contrast. 降低视疲劳,减弱强光刺激
- The shape and structure of an object. 形状物体的样子和构造
- Muscle and neuralgia, and enhance the immune system. 肌肉及神经痛,增强免疫系统。
- Must follow the shape and size of the above design. 必须依照上述形状及??荚臁
- To adjust product structure and enhance product added value. 调整产品结构,提高产品附加值。
- El Junco has a round shape and is 6 meters deep. 所有这些鸟都是偶然从南美洲飞抵这里的古老品系的后代。
- Relief fatigue, soothe rhematic pain and enhance blood circulation. 缓解因劳累或风湿造成的疼痛。舒缓血液循环等.