底部

数控车间里，技术工人正在定期清理机器排屑导轨底部的润滑油槽。

shù kòng chē jiān lǐ, jì shù gōng rén zhèng zài dìng qī qīng lǐ jī qì pái xiè dǎo guǐ dǐ bù de rùn huá yóu cáo.

In the CNC workshop, technical workers are regularly cleaning the lubricating oil groove at the bottom of the machine's chip removal guide rail.

搬运精密仪器之前，箱子底部必须先垫上一层厚厚的防震泡沫。

bān yùn jīng mì yí qì zhī qián, xiāng zi dǐ bù bì xū xiān diàn shàng yī céng hòu hòu de fáng zhèn pào mò.

Before transporting precision instruments, the bottom of the box must be padded with a thick layer of shock-proof foam.

由于电烤箱设定的烘烤温度过高且未及时翻面，刚刚出炉的那盘黄油手工小饼干底部边缘被烤得有些发焦。

yóu yú diàn kǎo xiāng shè dìng de hōng kǎo wēn dù guò gāo qiě wèi jí shí fān miàn, gāng gāng chū lú de nà pán huáng yóu shǒu gōng xiǎo bǐng gān dǐ bù biān yuán bèi kǎo dé yǒu xiē fā jiāo.

Because the baking temperature set in the electric oven was too high and the sides were not turned over in time, the bottom edge of the butter handmade biscuits that had just come out of the oven was a little burnt.