But Also More Durable的意思|示意

Tapping this steam would be expensive, since it would require not only extra building materials, but also more durable ones, to cope with the higher pressures and temperatures.

利用此类蒸汽可能代价不菲，因为这不仅要消耗额外的建筑材料，而且要求所用的建材更为牢固以经受更高的压力和温度。

Chains are more durable than rope, but also more dangerous if the horse panics and pulls them out of the wall.

链条比绳更耐用，但如果马惊慌时将链拉出墙，也会更危险。

You can also, depending on the shape of the book, use more or less than 3 tapes, usually two is fine but I wanted this book to be strong and durable, adding to the quality of the book.

根据书的形状不同，你也可以只用不止三条带子。通常两条就好了，但我希望这本书结实耐久，并且看上去品质良好。