Due to the barrier of communication, rough sea conditions, bad weather and other factors, it is hard for ocean-going vessels to obtain technical support from the manufacturers and maintenance center.

船舶航行无限航区，受通信、海况、天气等影响难以获得厂商和故障诊断与维护中心强有力的技术支持。

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Whereas the current limit on sulfur emissions in diesel fuel allowed in the United States is 15 parts per million, the diesel fuel coming in from ocean-going vessels emits 45, 000 parts per million!

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