pitching seam 中文意思是什麼

pitching seam 解釋
陡傾礦層
  • pitching : n. 1. 鋪地石,護堤石。2. 扔出;【棒球】投球(法)。3. (船的)縱搖或前後簸動;【航空】俯仰。
  • seam : n 1 縫;線縫。2 介面;接縫;接合處;接合線。3 裂縫。4 (臉上的)皺紋。5 傷痕。6 【造船】(船板間...
  1. Quadratic function analysis of greatest subsidence angle during mining pitching or steerly pitching coal seam

    大傾角煤層開采最大下沉角的二次插值分析
  2. I ' d never thrown a two - seam sinker until two years ago in the minors, when the pitching coaches told me to try it. before, i used four - seam fastballs and sliders

    我從未投過二縫線伸卡球,直到兩年前,在小聯盟時,投手教練教我練習,之前我主要投四縫線速球和滑球。
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