航旅一号“是我国研制的第一艘观光潜艇，最大耐压深度50米，可载客40人。”
"Air Brigade No. 1" is China's first tourism development of the submarine, the greatest pressure depth of 50 meters, carried 40 people.
近年，除了军用潜艇外，工业和旅游观光用潜艇使用量逐渐增多，研制潜艇专用空调系统与设备逐渐引起人们的关注。
In recent years, the application of submarine in the fields of industry, tourism and sightseeing, besides military use, has been gradually increasing.
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