They are mov and H.264 (high, very high, and superhigh).
它们是mov和 H.264（高、很高和超高）。
Sealing is a key factor of superhigh pressure engineering.
密封是超高压技术的关键。
The effective mining method at small piece section of superhigh and complicated seam is explored.
探索有效的特厚复杂结构煤层小块段的开采方式，可提高效益，降低消耗，开采简单，便于生产。
The effective mining method at small piece section of superhigh and complicated seam is explored.
探索有效的特厚复杂结构煤层小块段的开采方式，可提高效益，降低消耗，开采简单，便于生产。
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