1. Washing machines make housework easier.
    洗衣机减轻了家务劳动。

2. Will factory workers be entirely superseded by machines one day?
    工人将来能完全由机器取代吗?

3. With scarcely a glance at the items, the clerk sweeps them across an aperture, where a special marking on each item is scanned by a low-powered laser beam inside the machine, connected to a remote computer.
    收款员几乎不看商品，只是把商品从机器上的孔眼处一扫而过，机器里的低能量激光对商品上的一个特殊标志进行扫描，这台扫描机与另一台电脑相联。

4. This whole process by which machines can be used to work for us has been called automation.
    用机器来为我们工作的整个过程被称为“自动化”。

5. The beam from a flashlight showed a beggar sleeping at his doorstep.
    借用手电筒的光, 他看到了一个睡在他家门口的乞丐。

6. These machines have always been noted for reliability.
    这些机器一直以可靠着称。

7. The beam has begun to sag.
    横梁开始下垂了。

8. These machines can be put to varied uses.
    这种机器可被用于各种用途。

9. These were the so-called mainframe machines.
    它们被称为主机。

10. Though these large machines still exist, many of their functions have been taken over by small powerful personal computers, commonly known as PCs.
    虽然这种大计算机仍然存在，但它们的许多功能已被体积小但功能齐全的个人电脑--即我们常说的PC机--所代替了。

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