1. 变异性：2.1.3 对无形性问题的可能解决办法;2.2 不可分离性(Inseparability)及其营销挑战;2.2.1 什么是不可分离性;2.2.2 不可分离性带来的营销挑战;2.2.3 对不可分离性问题的可能解决办法;2.3 变异性(Variability)及其营销挑战;2.3.1 什么是变异性;
2. 可变性：第二语言习得者的中介语的发展是习得者不断地做出有关目标语假设并且证实自己假设的过程,一般认为它具有系统性(systematicity),可变性(variability)和语言僵化(fo ilization)三个特点(Yip,1995).
3. 变化性：: 多样性(variety):根据作业效率及市场需求决定产品的多样性 速度(velocity):在供应链的所有流程中都保持稳定的流动速度 变化性(variability):谨慎管理不协调的状况以降低成本、提升品质 透明度(visibility):确保所有流程的透明度,
1. Reduced variability can be a marker for cardiac problems and other diseases and has been linked to high blood pressure.
2. The ups and downs during the last decade repeat random variability in data as far back as 1880.
3. Swiss researchers found that among 305 children they followed from ages 1 to 10, there was significant variability in how much sleep they typically got each night.
noun
1. the quality of being subject to variation
Synonym: variableness variance
2. the quality of being uneven and lacking uniformity
Synonym: unevenness