事实上，它工作原理与巴贝奇的差分机相似，不同之处在于它的数字排列在圆柱形的外表面上而不是向织布机架那样水平分布。

In fact, it works much like Babbage's Difference engine, except that its digits are arrayed along the outer surface of a cylinder instead of horizontally along a loom-like rack.

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不过他们向内陆走得越远，他们能找到的员工的技术就越差，向市场运输的成本也越高。

Yet the further inland they go, the less skilled the employees and the higher the transport costs to market.

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虽然商务人士乘轮渡出行很少，假如多到足以有理由去商定差费协议，那么运营商肯定会向常客提供折扣，有时会提供其它好处。

And while corporate ferry travel is rarely if ever prolific enough to justify negotiated fare deals, operators do offer discounts and sometimes other benefits to frequent customers.

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