海底兩萬里 第179期 第13章 一些數字(2)

The Nautilus is made up of two hulls, one inside the other; between them, joining them together, are iron T-bars that give this ship the utmost rigidity.

諾第留斯號由雙層船殼造成， 一層是內殼，另一層是外殼，兩殼之間，用許多T字形的蹄鐵把它們連接起來，使船身堅硬無比。

In fact, thanks to this cellular arrangement, it has the resistance of a stone block, as if it were completely solid.

是的，由于殼與殼之間有這種細胞式的結構，這船像是一大塊實鐵，中間飽滿無隙，可以抵抗一切。

Its plating can't give way; it's self-adhering and not dependent on the tightness of itsrivets; and due to the perfect union of its materials, the solidarity of its construction allows it to defy the most violent seas.

它的邊緣不可能松動;船身合而為一，是由于結構本身的力量，不是由于鉸釘的扣緊;因為材料配置完全適合，構造整齊劃一，它可以在海洋中行駛，不怕最洶涌的風浪。

The two hulls are manufactured from boilerplate steel, whose relative density is 7.8 times that of water. The first hull has a thickness of no less than five centimeters and weighs 394.96 metric tons.

這兩層船殼是用鋼板制造的，鋼的密度與海水密度的比例是十比七至八。第一層船殼至少有五厘米厚，重量是三百九十四點九六噸。

My second hull, the outer cover, includes a keel fifty centimeters high by twenty-five wide, which by itself weighs 62 metric tons; this hull, the engine, the ballast, the various accessories and accommodations, plus the bulkheads and interior braces, have a combined weight of 961.52 metric tons, which when added to 394.96 metric tons, gives us the desired total of 1,356.48 metric tons. Clear?

第二層內殼，就是龍骨，有五十厘米高，二十五厘米寬，只重六十二噸。機器，鎮(zhèn)船機，各種附屬船具和裝置品，內部的各樣墻板和木材等等的重量和上面的三百九十四點丸六噸，就是總重量一千三百五十六點四八噸中的一部分了。這您明白嗎?

Clear, I replied.

明白。我答。

So, the captain went on, when the Nautilus lies on the waves under these conditions, one-tenth of it does emerge above water.

所以，船長又說，在這種條件下，當諾第留斯號在海中時，它浮出海面十分之一。

Now then, if I provide some ballast tanks equal in capacity to that one-tenth, hence able to hold 150.72 metric tons, and if I fill them with water, the boat then displaces 1,507.2 metric tons-or it weighs that much-and it would be completely submerged. That's what comes about, professor.

但是，如果我裝設了容積等于這十分之一的儲水池，容水重量為一百五十點七二噸，如果我讓水池裝滿了水，這時船的排水量或重量是一千五百零七噸，那它就完全潛入水中了。

These ballast tanks exist within easy access in the lower reaches of the Nautilus.

教授，事情原來就是這：樣。這些儲水池實際是存在的，它們在諾第留斯號的下層。

I open some stopcocks, the tanks fill, the boat sinks, and it's exactly flush with the surface of the water.

我打開儲，水池的門，水池就填滿了，剛被水面齊頂淹沒的船于是往下沉了。