1·Zhang: Mr. Smith, I have been arranging maintenance and repair according to your requirement. However, we can't deal with the main engine.
张： 史密斯先生，我根据你的要求正在维修保养工作，然而我们不能解决主机问题。
2·Whether the main engine runs on the proper fuel oil will directly decide its operation and output power.
主机使用的燃油是否合适将直接决定机器的运行和输出功率。
3·To a ship with good speediness, the performances of ship, main engine, and propeller must match each other.
快速性良好的船舶应使得船、主机和螺旋桨之间的性能综合匹配。
4·If there is people near the boat, people should keep away from dangerous areas when start main engine and sailing.
当在船的附近有人时，启动主机并航行时应使人员远离危险区域。
5·The steam valve of main engine fresh water heater leaked.
主机淡水加热器的蒸气阀有滴漏。