The Trieste had five-inch-thick walls, and the 13-tonne pressure sphere hung under a massive tank filled with 22,500 gallons of gasoline for buoyancy.

“的利亚斯特”号壁厚 5 英寸，重达 13 吨的耐压球壳悬挂在一个巨型水槽的下方，水槽内灌注了 22500 加仑的汽油以产生浮力。