这句句子的意思是什么？

In the representative lightcraft design considered in this investigation, the PDE engine develops a maximum thrust of 12,000 N - assuming 24 plasma ‘fingers’, each 0 - cm long and 1- cm in radius, under ambient sonic axial refresh conditions. This is sufficient to accelerate a 350-kg, 2.5-m diameter lightcraft at nearly 35 Gs.
plasma 是等离子体 sonic 音速
lightcraft 是光船 G 可能是重力加速度。
从assuming 24 plasma ‘fingers’ 开始很难理解。 谢谢。

感觉语法很简单,大概是概念的问题吧

In the representative lightcraft design considered in this investigation, the PDE engine develops a maximum thrust of 12,000 N - assuming 24 plasma ‘fingers’, each 50 - cm long and 1- cm in radius, under ambient sonic axial refresh conditions. This is sufficient to accelerate a 350-kg, 2.5-m diameter lightcraft at nearly 35 Gs.
plasma 是等离子体 sonic 音速
lightcraft 是光船 G 可能是重力加速度。
从assuming 24 plasma ‘fingers’ 开始很难理解，请各位帮忙。 谢谢。