机械工程专业英语词汇翻译
超音波扬声器 ultrasonic [flaw] detector超音波学 ultrasonics紫外线吸收 ultraviolet absorption紫外线灯 ultraviolet lamp紫外线 ultraviolet rays影区，本影 umbra不均衡惯性力偶 un-balanced inertia couple不均衡惯性力 un-balanced inertia force不均衡舵 un-balanced rudder无拘束压力强度 un-confined compressive strength无控制撒气 un-controlled bleeding无控制膨胀 un-controlled expansion原质部 unaffected zone单向流动力机 unaflow engine无用能 unavailable energy不均衡构造 unbalanced construction不均衡飞轮 unbalanced fly-wheel不均衡力 unbalanced force不均衡负载 unbalanced load不均衡矩 unbalanced moment不碎玻璃 unbreakable glass进气未燃部分（内燃机） unburned fraction of charge未燃烧料 unburned fuel未燃混合气 unburned mixture测不准原则 uncertainty principle语际翻译 版权所有
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