Bell also invented the photophone, the ancestor of optical transmission systems; the audiometer, which is still used to test hearing; a device to find icebergs by listening to underwater echoes, the ancestor of SONAR; a desalinating machine for removing salt from seawater; a medical jacket that was the predecessor of the iron lung; the hydrofoil boat; and was part of a team that invented the three-wheel landing gear and wing flaps for airplanes.

貝爾還發(fā)明了光電話一级a做一级a做片性视，光傳輸系統(tǒng)的原形国产后入式免费视频；聽(tīng)度計(jì)国产原创自拍视频在线观看网，現(xiàn)在還在用于測(cè)試聽(tīng)力使劲啊哈视频，通過(guò)使用這種裝置收聽(tīng)水底回升發(fā)現(xiàn)冰山久久综合老熟女中文字幕，是SONAR的原形www.bjct-laser.com；一種將鹽從海水中分離的淡化海水裝置；一種醫(yī)用夾克99在线看精品，是人工呼吸機(jī)的前身新超碰免费男人网站；水翼艇；貝爾作為研究隊(duì)伍成員之一還參與發(fā)明了飛機(jī)三輪起落架和襟翼一级AAA特黄AV片在观看。

He even proposed a method for desalinating water.

他甚至提出了淡化水的方法成年人在线网站观看播放视频。

EDI is a kind of perfect desalinating technic.

因而EDI技術(shù)是一種完美的除鹽工藝，是替代混合離子交換器的最佳設(shè)備视频一区无码。

Small and medium-sized enterprises with family management which is most reasonable are summarizing, correcting, supplementing and desalinating family management.

即使是在最能體現(xiàn)其合理性的中小企業(yè)里欧美熟女另类，也應(yīng)不斷地對(duì)家族管理做法進(jìn)行總結(jié)、修改和補(bǔ)充看毛片在线，甚至在必要時(shí)淡化家族管理色彩AAA看黄片。

The key issue is whether desalinating enough seawater would be affordable, Anthes adds.

關(guān)鍵問(wèn)題是，我們是否能夠負(fù)擔(dān)的起淡化海水的巨大費(fèi)用国产清纯高中生在线观看，安塞斯補(bǔ)充說(shuō)亚洲香蕉毛片免费看。

sea water desalinating unit：海水淡化裝置

sea water bronze 耐海水腐蝕青銅 | sea water desalinating unit 海水淡化裝置 | sea wear 海洋服