span-80中文什么意思

例句与用法

1. 2 ) the shape and average size of the nanometer caco3 particles have been tested through tem . 3 . on the basis of hlb suitable surface - active agents such as polyether , tween - 60 , span - 20 and span - 80 , which exist as capsules , are selected
   3 、根据表面活性剂亲水亲油平衡值选择了聚醚、吐温- 60 、司本- 20和司本- 80作为纳米碳酸钙粒子的表面活性剂，它们以胶囊的形式存在。
2. The surface oxidation of the composite particles , breakage of the composite particles using ball milling or the addition of span - 80 when synthesized may reduce the permittivity of the composite particles , but the surface oxidation may also reduce the imaginary part of the permeability of the composite particles
   使复合粒子表面氧化，球磨破碎复合粒子或在制备- fe粒子时添加span - 80均可以降低复合粒子的介电常数，但复合粒子表面氧化同时使粒子磁导率虚部也有较大降低。