This article has carried on the preliminary analysis and the outline to the customer lifelong value, and proposed based on the user discrimination customer life-long value strategy.
本文对顾客终身价值进行了初步的分析和概述，并提出了基于用户区分的顾客终生价值战略。
2
The experiment also include the preliminary study of the effects of light, temperature, pH value, reductant, oxide, sucrose, preservative and metal ions on its stability.
从光、温度、还原介质、氧化介质、蔗糖、防腐剂、金属离子等对色素稳定性的影响进行了初步研究。
3
Based on the criminal trial of the basic principles of relations campaign to a social vision of the law, criminal trials do realize the value of the empirical study and preliminary study.