일본이 24년 동안 6,900억 엔 들여 54km 바닷속에 뚫었다는 초대형 해저터널┃바다 밑에 터널을 어떻게 만들까?

<p><span>일본이 24년 동안 6,900억 엔 들여 54km 바닷속에 뚫었다는 초대형 해저터널┃바다 밑에 터널을 어떻게 만들까?</span></p><p><span><a href="https://youtu.be/q5tl0gOVksU" target="_blank" class="ke-link">https://youtu.be/q5tl0gOVksU</a></span></p><div class="figure-video" data-ke-type="video" data-video-url="https://www.youtube.com/watch?v=q5tl0gOVksU" data-video-host="youtube" data-video-play-service="daum_cafe" data-video-width="869" data-video-height="489" data-ke-style="alignCenter" data-video-thumbnail="https://scrap.kakaocdn.net/dn/cbwZlx/hyX7QEZj2M/SHt0DqtugUMZfZYM9L3SJ1/img.jpg?width=1280&height=720&face=0_0_1280_720,https://scrap.kakaocdn.net/dn/dxxojG/hyX7P65WAL/98HBaUYGxosxJQRgT1VvkK/img.jpg?width=1280&height=720&face=0_0_1280_720" data-ke-mobile-mobileStyle="widthContent" data-video-origin-width="869" data-video-origin-height="489"><iframe src="https://www.youtube.com/embed/q5tl0gOVksU" width="869" height="489" frameborder="0" scrolling="no" allowfullscreen=""></iframe><div class="figcaption"></div></div><p><a style="color: #000000; background-color: #ffffff;" href="https://www.youtube.com/watch?v=fH5DDZEAZZU&t=381s&pp=ygUW7LSI64yA7ZiVIO2VtOyggO2EsOuEkA%3D%3D" target="_top" class="ke-link">최첨단 기술이 모두 동원되는 터널 뚫기" 물 한방울 안새고 튼튼하게 만들어 지는 걸까?, 한강 하저 터널! #과학 #EBS지식</a></p><div class="figure-video" data-ke-type="video" data-video-url="https://www.youtube.com/watch?v=fH5DDZEAZZU" data-video-host="youtube" data-video-play-service="daum_cafe" data-video-width="869" data-video-height="489" data-ke-style="alignCenter" data-video-thumbnail="https://scrap.kakaocdn.net/dn/cm6aMx/hyX7TV0rW5/Pky8yfxGiI5RsDRoka8zd1/img.jpg?width=1280&height=720&face=0_0_1280_720,https://scrap.kakaocdn.net/dn/d9tUNv/hyX7RKEhTN/KsYz3dNThhkMd94xSUpSW0/img.jpg?width=1280&height=720&face=0_0_1280_720" data-ke-mobile-mobileStyle="widthContent" data-video-origin-width="869" data-video-origin-height="489"><iframe src="https://www.youtube.com/embed/fH5DDZEAZZU" width="869" height="489" frameborder="0" scrolling="no" allowfullscreen=""></iframe><div class="figcaption"></div></div><p><a style="color: #000000; background-color: #ffffff;" href="https://www.youtube.com/watch?v=wbF3Jge7Ess&pp=ygUW7LSI64yA7ZiVIO2VtOyggO2EsOuEkA%3D%3D" target="_top" class="ke-link">한중 해저터널이 뚫린다면?...연결지점 3곳 인천, 화성, 평택?</a></p><div class="figure-video" data-ke-type="video" data-video-url="https://www.youtube.com/watch?v=wbF3Jge7Ess" data-video-host="youtube" data-video-play-service="daum_cafe" data-video-width="869" data-video-height="489" data-ke-style="alignCenter" data-video-thumbnail="https://scrap.kakaocdn.net/dn/blM85s/hyX7Ughruy/ltT58PpcMWnRUCqPvXb3Jk/img.jpg?width=1280&height=720&face=0_0_1280_720,https://scrap.kakaocdn.net/dn/cQ4xD1/hyX7OUBsOZ/MItPCADb3Jsok02r5IZSV0/img.jpg?width=1280&height=720&face=0_0_1280_720" data-ke-mobile-mobileStyle="widthContent" data-video-origin-width="869" data-video-origin-height="489"><iframe src="https://www.youtube.com/embed/wbF3Jge7Ess" width="869" height="489" frameborder="0" scrolling="no" allowfullscreen=""></iframe><div class="figcaption"></div></div><p> </p><p> </p><p> </p><p> </p>