kō rochōdattara
1. If the optical path length…; When the optical path length…
Noun
#282239
1. If the optical path length…; When the optical path length…
1. length
1. if it's the case
1. next morning
1. eldest son (may be the only son); first-born son
1. to examine; to look up
1. to cross over; to cross
2. to exceed; to surpass