8) 大多数计算机的用户无需了解计算机硬件，可以把计算机的各种机件看作是一些得心应手的“黑盒”。

Most users of a computer need to know little about computer hardware and regard the various parts of the computer as“black boxes" which do what is required of them.

9) 然而，这并不意味着，在一个社会中行之有效的管理技术或方法原封不动或稍加修改后用于另一社会，就会不起作用。

However，this does not mean that a management technique or approach that is successful in one society may not work with few, if any , change in another.

10) 水银会热胀冷缩，囡此，根据温度计水银柱的高度可以测出与温度计相接触的物体的温度。The mercury expands as it gets hotter and contracts as it cools so that the length of the mercury columm gives a measure of the temperature of the body with which it is contact.

11) 由于分子之间碰撞频繁，分子运动完全是杂乱无章的。

Owing to the frequency of collisions between molecules, their motions are entirely at random.

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