3 sentences

1. 矿场有消息了吗？

   kuàng​chǎng yǒu xiāo​xi le ma?

   Is there any news from the mines?

   Source: OpenSubtitles

2. 他在矿场干这种苦力已经好几年了。

   tā zài kuàng​chǎng gàn zhè zhǒng kǔ​lì yǐ​jīng hǎo​jǐ nián le.

   He has been doing this kind of hard labor at the mine for several years.

   Source: Dong Chinese Dictionary

3. 这个露天矿场的台阶设计非常科学。

   zhè gè lù​tiān kuàng​chǎng de tái​jiē shè​jì fēi​cháng kē​xué.

   The bench design of this open-pit mine is very well-engineered.

   Source: Dong Chinese Dictionary