English Dictionary

running in

名詞

不可算名詞

The operating of a new engine (especially that of a motor vehicle) at less than its normal speed until proper working has been established.

日本語の意味

新しいエンジンを適正な動作状態に慣らすため、通常の速度より低速で運転する行為（試運転、慣らし運転）

The running in of the new engine was completed after several gentle drives and careful oil changes.

新しいエンジンの慣らし運転は、数回のゆっくりとした走行と注意深いオイル交換の後に完了しました。

意味（1）

The operating of a new engine (especially that of a motor vehicle) at less than its normal speed until proper working has been established.

… moreover, there are times of pressure when, to expedite deliveries, cars may be driven in what should otherwise be the running-in period at speeds that do them no good - and over long distances too.