The minute hand is bigger than the hour hand.

分针比时针长.

A watch has three hands -- the second hand, minute hand and hour hand.

手表有三根指针--秒针 、 分针和时针.

A clock has three hands, the second, minute, and hour hand.

钟有三个指针, 秒针, 分针和时针.

For example if you’re in London then Big Ben is the hour hand that you look at; in New York you would use Statue of Liberty as your hour marker.

例如如果你身处伦敦，你看到是指针就是大本钟;在纽约它的时间标识是自由女神像。

Turn it, while keeping it parallel, until the hour hand is pointing in the direction of the sun.

将时针转向太阳的方位。

Since the hour hand on the clock was made to follow the sun's motion through the sky, it moves from left to right over the top of the clock - clockwise .

由于钟表的时钟是按太阳经过天空的运行轨迹设计的，因此它是从左到右经过钟表的顶部而移动——即顺时针方向。