例句與造句

1. For example, the parabolic trough concentration is about 1 / 3 of the theoretical maximum for the same acceptance angle, that is, for the same overall tolerances for the system.
2. Cerebrospinal fluid ( CSF ) concentrations vary; peak CSF concentrations are lower than serum ones, due to slow diffusion across the blood brain barrier, and trough concentrations in the CSF are higher for the same reason.
3. It's difficult to find trough concentration in a sentence. 用trough concentration造句挺難的