潛(qian)(qian)(qian)(qian)水工程作(zuo)業中下潛(qian)(qian)(qian)(qian)和上升(sheng)都要(yao)做輕松(song)下潛(qian)(qian)(qian)(qian)和上升(sheng)的工作(zuo)。這是因為(wei)很多人剛開始下潛(qian)(qian)(qian)(qian)的時候并不(bu)(bu)是很輕松(song)，因為(wei)浮力控制不(bu)(bu)好，然(ran)(ran)后下潛(qian)(qian)(qian)(qian)速度稍微快(kuai)了一(yi)點。會出現(xian)緊張過度，輕松(song)下潛(qian)(qian)(qian)(qian)我們可以(yi)選擇水底斜(xie)坡(po)或者下潛(qian)(qian)(qian)(qian)繩來(lai)控制下潛(qian)(qian)(qian)(qian)速度，如果你(ni)的面鏡出現(xian)擠壓，你(ni)可以(yi)通過鼻(bi)子(zi)呼氣來(lai)平衡，如果你(ni)的耳朵出現(xian)擠壓疼(teng)痛，你(ni)要(yao)停止(zhi)下潛(qian)(qian)(qian)(qian)，然(ran)(ran)后上升(sheng)到淺一(yi)些的深度，直到耳朵感到不(bu)(bu)適消失為(wei)止(zhi)，然(ran)(ran)后捏住鼻(bi)子(zi)鼓氣或者吞咽(yan)口水和下巴左(zuo)右(you)擺動再慢慢地下潛(qian)(qian)(qian)(qian)。傷風感冒時 別潛(qian)(qian)(qian)(qian)水。而上升(sheng)中做輕松(song)上升(sheng)，也是同理。

  ，在潛(qian)(qian)水下堵漏工(gong)程作業(ye)的(de)(de)(de)(de)時候(hou)，因(yin)為工(gong)作或其他(ta)原因(yin)，有時就會忘記看自(zi)己的(de)(de)(de)(de)氣(qi)(qi)瓶里殘余的(de)(de)(de)(de)空(kong)氣(qi)(qi)量，如果等(deng)到他(ta)們沒有氣(qi)(qi)吸(xi)的(de)(de)(de)(de)時候(hou)已經來不(bu)及了(le)。這個(ge)時候(hou)剛剛好他(ta)們的(de)(de)(de)(de)潛(qian)(qian)伴就在身邊，所以必須要(yao)用(yong)潛(qian)(qian)伴的(de)(de)(de)(de)備(bei)用(yong)氣(qi)(qi)源來呼吸(xi)，然后(hou)離(li)開水底上(shang)升到水面上(shang)來。