矿山

kuàng shān dì yā

矿山地压

rock pressure

kuàng shān jī xiè

矿山机械

mining machinery

kuàng shān de fā zhǎn zhuàng dà

矿山的发展壮大

the development of mine

yī zuò kuàng shān

一座矿山

a mine

kuàng shān è liè de gōng zuò huán jìng

矿山恶劣的工作环境

the poor working conditions in the mines

bà zhàn tā rén de kuàng shān

霸占他人的矿山

jump a claim

kuàng shān ān quán

矿山安全

mine safety