1-69. Certain waterborne-related it

1-69。某些与水有关的物品对环境极为敏感。人员应将密封好的物品完全密封在密封的防水容器中。通常，重型塑料袋适合小物品。大型物品（例如橡皮船）通常具有自己的重型橡胶或帆布容器。子表面缓存更加耗时且困难。人员必须完全防水所有敏感物品。快艇必须位于水面游泳者或潜水员可以到达的深度。在权衡放置缓存的位置和深度时，分队还必须考虑潮汐高度和潮流数据。涨潮的涨落将影响深度。在任何情况下，工作人员都应将缓存位置尽可能靠近海岸或海滩。

1-69. 某些与水性有关的物品对环境的影响极为敏感。应将埋藏的物品完全密封在密封防水容器中。通常，重型塑料袋足以满足小件物品。大型物品，如橡皮艇，通常有自己的重型橡胶或帆布容器。子表面缓存更耗时且困难得多。人员必须完全防水所有敏感物品。缓存必须处于可由水面游泳者或潜水员到达的深度。分遣队还必须考虑潮汐高度和潮汐流数据，在权衡将缓存放在什么位置和深度。潮水的涨落会影响水深。在任何情况下，人员应尽可能靠近海岸或海滩的位置。

1-69. Certain waterborne-related items are extremely sensitive to the environment. Personnel should completely seal buried items in airtight waterproof containers. Normally, heavy-duty plastic bags are adequate for small items. Large items, such as rubber boats, generally have their own heavy-duty rubber or canvas containers. Sub- surface caching is much more time-consuming and difficult. Personnel must totally waterproof all sensitive items. The cache must be at a depth that can be reached by surface swimmers or divers. The detachment must also consider tide height and tidal current data when weighing where and at what depth to put the cache. The rise and fall of the tide will affect the depth. In any case, personnel should position the cache as close to the shore or beach as possible.<br>