Make the text more cohesive:
It interprets this in conjunction with Herbert's definition of the defensive shield. It is unclear whether the author intended the Holtzman effect to be an original component of his suspensor-nullification effect or a phenomenon created by Holtzman's invention, the shield generator.
Interpreting this in conjunction with Herbert's definition of the defensive shield, it is unclear whether the author intended the Holtzman effect to be an original component of his suspensor-nullification effect or a phenomenon created by Holtzman's invention, the shield generator.