noun
bare output conditions
Technical term likely used in engineering or physics contexts to describe the fundamental or unmodified conditions under which a system produces output.
この実験では、素出力条件で測定を行った。
In this experiment, measurements were taken under bare output conditions.
Compound of 素 (bare, unadorned) + 出力 (output) + 条件 (conditions). The exact derivation is uncertain; it appears to be a technical term formed from these components.