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关于潜水科学的长篇深度文章，引用翔实，以教学为目的，而非推销。
SAC, RMV, and SRMV: What Your Breathing Rate Is Actually Called
Ask three divers what SAC and RMV mean and you get four answers, half of them wrong on the units. This sorts out the terms from the medical definition up, shows the maths, and explains why Dive Kit standardised on SRMV.
阅读文章What “AL80” Actually Means: Cylinder Capacity, Explained
An AL80 does not hold 80 cubic feet of gas. This is the plain-English guide to how cylinders are sized and named: water capacity versus free-gas capacity, the maths, and why real gas makes the number on the sticker a small lie.
阅读文章Unpacking Gradient Factors
Two numbers on your dive computer decide how you ascend. They were introduced in the late 1990s, and recent evidence reshaped what 'conservative' means. No one can hand you the 'right' setting, so the goal is to understand the trade-off and choose your own.
阅读文章获取 Dive Kit
11 个工具免费。减压规划：免费试用，之后 $4.99/月 或 $24.99 终身版。
