The mud-rock flow is main geological calamity in Xinjiang.

泥石流是新疆的主要地质灾害。

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The earthquake of 14 Sep. 1984 in west Nagano caused massive soil rock flow.

1984年9月14日日本长野县西部地震产生了大规模的泥石流。

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In Dongchuan is located a main copper mine of China. It is a place where mud rock flow often happens.

东川是我国铜矿主产地，又是泥石流灾害多发区。

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But few filmmakers before or since have been able to consistently orchestrate such maddening elements into a metal rock flow.

CNN: Scott made tense films for jittery times

And then that allows the gas to flow out of the rock into the well bore.

NPR: Drilling for Gas in Dallas-Fort Worth

Most of those chemicals are designed to stay underground, where they react with the rock and help the oil and gas flow.

FORBES: Shale Gas Frackers Get Excited About ... A New Sponge?