Starting in 2012, under the International Maritime Organization's regulations, all ships within 370 kilometers of North America will have to use cleaner diesel fuel.
在国际海洋组织的规定下，从2012年起，所有船只在进入距离北美洲海岸370公里水域内时，必须使用清洁柴油。
The high speed photography was applied to visualize the fuel spray and ignition process in main and prechamber in a swirl type diesel engine at cold starting condition.
本文对涡流室式柴油机在冷起动条件下主、副燃烧室内燃油喷雾和着火过程进行了高速摄影。
The engine transient speed, fuel injection, combustion process and the cyclic variations in some performance indexes are investigated on a small single cylinder diesel engine during cold-starting.
测量分析小型手摇起动柴油机冷起动过程的瞬时转速、喷油及燃烧过程特征参数在每一循环中的变化情况；
Main elements impacting diesel cold starting are analyzed, concrete plan for diesel cold preheating and starting is put forword, that is using fuel oil heater.
分析影响柴油机低温起动的因素，提出利用燃油加热器为柴油机低温预热起动的具体方案，并提供加热器功率的计算方法。
But the fuel starting injection pressure will turn low gradually when the operational time of the diesel engine increases. This will cause worsening of the combustion process and fuel economy.
但是随着柴油机使用期的增长，启喷压力会逐渐降低，导致燃烧过程恶化，经济性下降。
But the fuel starting injection pressure will turn low gradually when the operational time of the diesel engine increases. This will cause worsening of the combustion process and fuel economy.
但是随着柴油机使用期的增长，启喷压力会逐渐降低，导致燃烧过程恶化，经济性下降。
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