法国一家公司研制了一种可沉入水底的新式养鱼箱.这种养鱼箱可避免风浪、偷鱼者以及水面污染的影响,还可减少与旅游业、水产捕捞等行业发生争抢水面的矛盾.养鱼箱系有拉绳,通过拉绳及滑轮可以将箱体拉向水底.滑轮固定在水底的混凝土桩上,拉绳通过几个滑轮与箱体相接.拉绳的长度根据水的深度而定,箱体所处的深度位置可通过一个浸入水中的平衡装置来调节;通过调节其中的空气容量或通过岸上的机械来实现箱体的升降,箱体的浮力由浮筒提供,一旦箱体升到水面,浮筒就承受其全 A French company has developed a new sunken aquarium that avoids the effects of storms, fish-stealing and surface pollution and reduces the risk of competition with industries such as tourism and aquaculture The contradiction between the fish tank Department of a rope, through the rope and pulley can pull the box to the bottom of the pulley fixed to the bottom of the concrete pile, the rope through the pulley connected to the cabinet. The length of the rope according to Depending on the depth of the water, the depth position of the tank can be adjusted by means of a balancing device immersed in the water; the tank is raised and lowered by adjusting the air volume therein or by shore machinery, the buoyancy of the tank being provided by the float, Once the tank rises to the surface, the float will withstand its full length