バイオミミクリー：自然界のデザインを利用した工学

1級説明文科学

普通

音声を聞き、内容に基づいて各設問に答えてください。

To allow it to travel faster than the kingfisher dives.

To address a noise issue caused by air pressure changes.

To make the train more visible in dark tunnels.

To lower the cost of manufacturing the train's nose.

The train became capable of underwater travel.

The project inspired more birds to settle near the tracks.

The train's operational energy efficiency improved.

Maintenance costs were halved due to the new shape.