A30 https://blog.hatena.ne.jp/A30/ 常時英心：言葉の森から 1.0 https://a30.hatenablog.com/ 英語の落ち穂拾い 水中ドローンの開発によって、深海の生物の調査などの大きな発展に貢献期待できます。“There are an unlimited number of places where underwater drones can check dams and ports for possible deterioration, examine the bottom of rivers and do other types of work,” said Shuhei Habu, 42, president of Six Voice. 以下省略http://www.asahi.com/sp/ajw/articl… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fa30.hatenablog.com%2Fentry%2F20181230%2F1546162181" title="deterioration 復習 - 常時英心：言葉の森から 1.0" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2018-12-30 18:29:41 rich https://a30.hatenablog.com/entry/20181230/1546162181 1.0 100%