experimentally, on an experimental basis
- 科学の実験をする
- do [make] a scientific experiment
- ねずみを用いてガス中毒の実験をした
- We used mice to experiment with gas poisoning.
- 目下実験中である
- It is in [at] the experimental stage./It is 「being tested [undergoing tests].
- 実験済みである
- That has already been tested.