股票价格的两个成分， t q 和 t z ，也代表了永久成分（permanent component）和暂时成分 （temporary component）。
双语例句
1
Because flavonoids are so frequently occurring in plants, they are a permanentcomponent of our food.
因为黄酮类化合物广泛存在于植物中，他们是我们食物的一个固有成分。
2
Installation tasks only occur once, at image-building time, and the installed software becomes a permanentcomponent of the image.
安装任务只在构建映像时运行一次，然后安装的软件就成为映像的永久组件。
3
The tension control system using permanent-magnet DC torque motor as executive component is design. It can inspect and adjust tension at real-time during winding.