pyrogenic rock

常見例句

雙語例句

• Of or relating to rock so formed; pyrogenic.
  火成的由熔化的巖石凝固形成的。
• In the closed seam, the pyrogenic rock compressed and compacted the structure coal. There is a stress concentrated at the tip of the structure, which could provide the inner energy for the gas.
  火成巖對煤層擠壓揉皺形成構(gòu)造煤，同時構(gòu)造尖滅端應力集中，提供了足夠的瓦斯熱力學能。
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