[通「とお」]り/[通「とお」]り => In the way A; The same as A, B; As described by A, B N2
Miscellaneous
を[通「とお」]じて/を[通「とお」]して => Over the course of A, during the time A, Through (as a means) A N2
Miscellaneous
[一方「いっぽう」]だ => Change A continues, A does not stop N2
Miscellaneous
[一方「いっぽう」] => On one hand A, on the other, B; Although A, at the same time, B N2
Contrast,Surprise