low-speed and heavy-duty equipment
low-speed and heavy-duty equipment
低速和重型设备
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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This paper discusses different drive gear failures in coal mining equipment featuring high power, low speed, heavy-duty and small dimension, and proposes measures against them.
针对煤矿机械功率大、速度低、重载和相对尺寸小的特点，分析了煤矿机械传动齿轮的失效形式，提出了改进途径。
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