科学家在以色列红海进行海底勘测时拍摄到珊瑚吸食咀嚼水母的一幕。
While surveying the Red Sea reefs in Israel, scientists found a mushroom coral munching on a moon jellyfish.
他们勘测了海底。
研究目的：胶州湾隧道需穿越海底断层破碎带，因工程地质勘察手段的局限性，决定了勘测阶段的地质资料不足。
Research purposes: Jiaozhou Bay Tunnel is needed to cross the seabed fault zone, but a little survey geological data are obtained because of the means limitation of engineering survey.
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