abyssn.深渊;无底洞
abyssal population深海种群
abyss of ignorance无知的深渊
abyssopelegic zone远洋深海区,远洋深海带
abyssal intrusions深侵入
abyssopelagic zone深渊层
abyssal circulation深海环流
Abyssinian Nightjarn.灰头夜鹰
abyssalpelagic zone远洋深海带
abyssopelagic fauna远洋深海动物群
abyssal environment深海环境