1)  SPAn
SPAn
1.
THE OPTICAL AND ELECTRICAL PROPERTIES OF SPAn/CdS NANOCOMPOSITES PREPARED BY SOLVOTHERMAL METHOD;
溶剂热法制备SPAn包裹CdS纳米粒子及其性能
2.
Review of Development on Span Series Surfactants;
Span系列表面活性剂合成工艺发展综述
3.
Study on the optical properties of the nanometer CdS-sulfonic group polyaniline (SPAn) composite multiplayer films;
纳米CdS-磺化聚苯胺(SPAn)多层复合膜的光学特性研究
2)  span
悬空段
1.
Maximum length of field pipeline span is related to the factors such as the strength of pipes and joint adapters,and the allowable pack angle,etc.
对机动管线两种连接接头、不同铺设形式时的挠度和管子折转角进行理论分析,得到它们之间的关系,并在此基础上,分别用两种连接器连接管线构成不同长度的悬空段进行实验。
3)  span
量程
1.
Based on many years of practice experience and data accumulation of developing, debugging and using belt constant tonnage feeder, the author introduced how to select a belt constant tonnage feeder of the right type and specification by calculating the main mechanic parameters according to the practical need and the use span.
作者结合多年来开发、调试和使用皮带定量给料机的实践经验与资料积累,介绍了如何根据实际需要和使用量程,通过对皮带定量给料机的主要机械参数的计算来合理地选用定量给料机的型号和规格。
4)  span
跨度
1.
Theoretic study of span extendible pedestrian bridge in cities;
跨度可伸长式城市人行过街天桥的理论研究
2.
Discussion on influence of cavern’s span on surrounding rock classification;
洞室跨度对围岩分类影响探讨
3.
This article presents a lifting and installation method for the 5 8-meter-span reinforcedconcrete arch frame and the adjustments at hinge points and fined joints.
介绍大跨度钢筋混凝土拱结构的基础施工、抗滑模拟实验,以及拱梁的预制安装方法。
5)  span
垮落步距
1.
Based on the plastic mechanics theory we have obtained the formulae and the equations for determining the first span,the secend span and the stable span,and given some examples.
应用塑性力学理论推出确定初次垮落步距、二次垮落步距和稳定垮落步距的公式和方程。
6)  Span
司盘
1.
Preparation and characterization of cationic liposomes complex modified by antisense oligonucleotides/Span;
反义寡核苷酸/司盘修饰阳离子脂质体复合物的制备和特性
参考词条
补充资料:Span 60
分子式:C24H46O6
分子量:430.63
CAS号:1338-41-6

性质:淡黄易碎蜡状物,熔点56-58℃。能分散于热水,溶于热油类及一般有机溶剂。微有脂肪气味。

制备方法:由山梨糖醇失水成环后,与硬脂酸酯化而得。

用途:该品是水/油型优良乳化剂,具有很强的乳化作用和分散、润湿等效果。可与各种类型表面活性剂混合使用。主要用作腈纶的抗静电剂和柔软上油剂,也可用作食品、医药、农药、涂料、塑料和化妆品的乳化剂。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。