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1·It is certainly possible that some other mechanism is at work in the VSG.

当然也有可能是其它机制在VSG中起作用。

2·VSG is commonly considered a strong immunogen and only enables the immune protection to homotype rather than heterotype.

VSG是公认的强免疫原，但只能使机体产生针对同型虫体的免疫保护，而对异型虫体不起保护作用。

3·If verified by further and careful study and certainly if durable at 5 years and beyond, VSG could replace traditional surgical procedures for obesity.

如果通过了未来更谨慎的研究验证，当然同时要经受维持5年以上的考验，VSG将可以取代传统的减肥外科术式。

4·A novel three-phase VSG is built by three-phase autotransformer and IGBT based bidirectional switch, can easily control the types of voltage sags, sag duration, sag depth and sag phase.

基于三相自耦变压器和由可控器件IGBT构成的双向开关实现的新型三相vsg，可以方便地控制跌落类型、跌落持续时间、跌落深度和跌落相位。