You are given a sentence in Japanese. Your job is to translate the Japanese sentence into English.

これはアスファルト製のものですアスファルトという素材は運転には快適ですがでも常に良いとは限りません例えば今日の様などしゃぶりの日など
It's made of asphalt, and asphalt is a very nice material to drive on, but not always, especially not on these days as today, when it's raining a lot.

米国再生・再投資法はどうでしょうこれは政策の変更ではありません
We might say the Recovery Act, but those didn't require policy changes.

ファージファイ X 174 を使用しましたがその選択には歴史的経緯があります

So that was the phage phi X 174, which was chosen for historical reasons.

