出没
发表于 2025-3-30 09:03:21
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潜移默化
发表于 2025-3-30 12:41:52
Basic Diving Equipmentover the eyes and nose. The lip is nowadays commonly made out of silicone. Usually masks have one glass for each eye. The glass should have the description “Tempered Glass” or “Safety Glass”. These glasses can be exchanged with prescription glasses, if needed. The visual acuity thus can be corrected
保存
发表于 2025-3-30 20:23:33
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人工制品
发表于 2025-3-30 21:48:24
Dive Tables and Dive Computerseir algorithms. Common dive tables usually apply only for recreational diving, not for decompression diving. For diving in altitude special diving tables are required. The purpose of diving tables is to avoid decompression accidents and ensure safe diving. Nitrox diving tables incorporate the risk o
Ligament
发表于 2025-3-31 03:58:07
Composition of the Normal Airbolism is oxygen. Oxygen in return is required by animals and human beings for their metabolism. The end product of their metabolism again is carbon dioxide. Thus a stable cycle of gas absorption and emission emerged in the course of evolution. But air is also composed of other gases, which are not
FOIL
发表于 2025-3-31 08:25:36
Physical Behaviour of Gasiquids or solid materials. Gas has higher entropy than solids. This makes gases more vulnerable to pressure and temperature changes. The entropy of gases changes with temperature and pressure. These characteristics have been known for centuries and described by physicists.
跑过
发表于 2025-3-31 11:06:24
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flex336
发表于 2025-3-31 15:38:05
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