2 sentences for 定点 (dìng​diǎn — fixed-point)

1. 这种微处理器主要用于处理定点运算。

   zhè zhǒng wēi​chǔ​lǐ​qì zhǔ​yào yòng​yú chǔ​lǐ dìng​diǎn yùn​suàn.

   This microprocessor is mainly used for fixed-point calculations.

   Source: Dong Chinese Dictionary

2. 圆是平面上到定点距离等于定长的点的轨迹。

   yuán shì píng​miàn shàng dào dìng​diǎn jù​lí děng​yú dìng​cháng de diǎn de guǐ​jì.

   A circle is the locus of points in a plane that are at a fixed distance from a fixed point.

   Source: Dong Chinese Dictionary