And they're in there with old-school scuba suits, where you're pumping air down to them, and they've got a pontoon of high-explosive magnesium powder, and the poor people at the surface are not sure when they're going to pull the string when they've got their frame in focus, and -- boom! -- a pound of high explosives would go off so they could put a little bit of light underwater and get an image like this beautiful hogfish.
那时，他们穿着老式 潜水服，带着水肺， 水面上的人要输送空气给他们。 他们还带了一个 易爆的镁粉浮筒， 水上面的人并不知道， 他们什么时候找到对焦 的目标，就开始拉动细绳， 然后，轰！一声巨响 ---- 一磅的镁粉爆炸了。 这样，他们就可以 把一点光带到水下面, 并且拍到一张美丽的 猪头鱼图像。