机械噪声是水下航行器主要噪声源之一。
Underwater mechanical noise is one of the main noise sources of submarines.
可取代传统的机械式柴油发动机组， 无噪声、 无烟尘、 无公害；
It can replace the traditional mechanical diesel engine unit.
供螺丝系统采用机械式选料，低噪声、低耗能，供料平稳快捷。
Screw supply system use the mechanical pars with low noise, low power, fast smooth feeding.
供螺丝系统采用机械式选料，低噪声、低耗能，供料平稳快捷。
Screw supply system use the mechanical pars with low noise, low power, fast smooth feeding.
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