By the time the survivors were found, no trace remained of three of the fish. A fourth was found floating in the tank.
但当这两位“幸存者”被发现时，其它三条鱼踪迹全无，而第四条鱼已经死亡漂浮在水面上。
This paper analyzes the metering error of floating roof tank caused by the floating tray to guide the installation of liquidometer.
对浮盘所造成的浮顶罐计量误差进行了分析，用以指导液位仪安装。
Introduce the form design of inner floating roof storage tank, and give some advice to the using design code.
针对储存水溶性液体的内浮顶罐的泡沫消防设计，提出应注意的问题和解决方法，和对现行规范的一点建议。
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