on the order of

副詞

数字後置頻度副詞

(often followed by a number) Approximately.

日本語の意味

およそ / 約 / 大体

The new battery increases the device's runtime on the order of two hours under normal usage.

新しいバッテリーは通常の使用で端末の稼働時間を約2時間延ばします。

意味（1）

(often followed by a number) Approximately.

[T]he rough number of mobile phones is on the order of 3 billion.