在购买电脑时，要注意硬盘的容量规格。

Zài gòumǎi diànnǎo shí, yào zhùyì yìngpán de róngliàng guīgé.

When buying a computer, pay attention to the capacity specifications of the hard drive.

在选择打印机时，要考虑打印速度和纸张规格。

Zài xuǎnzé dǎyìnjī shí, yào kǎolǜ dǎyìn sùdù hé zhǐzhāng guīgé.

When choosing a printer, consider the printing speed and paper specifications.

这个项目的规格要求使用高质量的材料。

Zhège xiàngmù de guīgé yāoqiú shǐyòng gāo zhìliàng de cáiliào.

The specifications for this project require the use of high-quality materials.