最新 LTH abbr.皮革；革制品; ***伤力与目标加固(Lethality and Target Hardening); 轻型拖曳榴弹炮(Light Towed Howitzer) 双语例句 The effects of laser transformation hardening ( LTH) on the fretting wear of titanium alloy are... 2025-12-09 9
