这通常是在第一天潜水后或是一系列潜水的第一潜后立即出现的。
This was always immediately after the first dive day or first dives in a series.
我非常同意楼主的意见，第一潜，应该找个容易的潜点，尤其是在Galapagos那种复杂环境的地方。
Yes, absolutely. The first dive with divers whom one does not know, especially in a challenging dive environment, should be an easy dive.
我很纳闷，作为第一个正式下潜前的简报，怎么会如此草率。
I was surprised at the brevity of the briefing, especially as it was our first actual dive of the trip.
中国国家海洋局表示，“蛟龙”号潜水器共计划潜水四次，第一次下潜是在北京时间周四凌晨5点26分，深度为4,027米。
In the first of four planned dives, the Jiaolong submersible reached 4, 027 meters at 5:26 a. m. Thursday, Beijing time, according to China's State Oceanic Administration.
介绍国内第一艘大型半潜式旅游潜艇的主尺度、总体性能、总布置、艇体结构及主要设计特点。
In this paper, principal dimensions, general capacities, general arrangement, hull structure and main design specialties of the first large semi-submersible tourist submarines at home are discussed.
应当指出，本文的工作是在内孤立波与水下潜体波体耦合的数值模拟领域所迈出的第一步。
It should be noted that this work is the first step of wave-body coupling between internal solitary wave and submerged body in numerical simulation field.
应当指出，本文的工作是在内孤立波与水下潜体波体耦合的数值模拟领域所迈出的第一步。
It should be noted that this work is the first step of wave-body coupling between internal solitary wave and submerged body in numerical simulation field.
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