帮忙把下面一段话翻译成英文，船舶专业的同学们请进

Hull block coefficient factors, propeller speed set by the host / ship loading of goods change will cause the output power, the fuel consumption is also different. In addition, the fuel consumption of the voyage bunker fuel, reducing the the ship longitudinal torque change occurs trim changes. Boats trial and stability report information indicates that the appropriate adjustments to the ship's draft, to meet the pusher must dip depth requirements, ensuring the propulsion efficiency of the propulsion, can reduce the damping effect of the water, to reduce fuel consumption.
Usually ship is to maintain appropriate stern dumping is favorable. So better propulsion efficiency can save fuel. Vessels entering and leaving the harbor, to reduce the wind area, to maintain steerage meet manipulate demand, the general provisions of the first draft of not less than 2% of the captain, Last draft is not less than 3% of the captain in the harbor.
The stowage general guarantee the tail draft more than the first draft. Stern dump can not be too large, will increase the ship's blind spot is not conducive to the safety of navigation, is likely to cause the tail on the waves. Especially in the draft restrictions port Hou the tidal and out of the port, in the stowage should maintain the level draft is conducive to the smooth and out of the ship.
• Establish computer mathematical model, reasonable align the best trim and optimize speed.
Voyage adjustment in order to obtain the optimum trim, trim common way is pressed into the discharge of ballast water or ballast water tanks cycle adjustment of ballast water in order to change the fuel consumption due to longitudinal torque change.
Adjust the ballast water should be considered the marine environment, the weather conditions at that time in order to ship safety, consider ballast water management rules governing the territorial sea as well as international marine pollution prevention Convention (Marpol Annex 1 Regulation 18.2) required ballast water management plan.
· External discharge of ballast water should be embodied in the ballast water management plan. Adjust the trim of the starting time and the actual Draft difference credited logbook.

Hull block coefficient, host factors set propeller speed / ship goods loading change will cause the output power, fuel consumption is also different. In addition, the fuel consumption makes navigation in fuel tank fuel reduction, ship longitudinal moment change trim changes. Ship model test and stability report information that, properly adjust the ship propeller immersion, meet certain requirements, ensure the propeller efficiency, can reduce water damping effect, reduce fuel consumption.
Generally in the ship, maintaining proper stern slope is favorable. Such a ship propulsion efficiency is good, can save fuel oil. The ship out of port, in order to reduce the wind area, maintain steerage, meet the demand the manipulation, general provisions first draft of not less than 2% captain, aft draft is not less than 3% of the captain.
In the stowage generally should ensure that the draft aft is greater than the first draft. But stern slope can not be too large, one will increase the ship blind is not conducive to the safety of navigation, two is easy to cause the tail water. In a draft restricted port especially to tide in and out of the port, in loading should be flat draft to ship the smooth import and.
Establish the mathematical model, reasonable adjusting optimum trim, optimization speed.
To get the best draft difference, the voyage to adjust the draft difference common way is pressed, discharge of ballast water or inner loop adjusting ballast ballast water to change the fuel consumption caused by the change of the longitudinal moment.
· adjustment of ballast water should be considered when the sea environment, meteorological conditions in order to ship safety, considering China's territorial waters under the jurisdiction of the ballast water management rules and international marine pollution prevention Convention ( Marpol Annex 1 Regulation 18.2 ) required by the ballast water management plan.
·ballast water discharged outside should be embodied in the ballast water management plan. To adjust the trim the start time and the actual draft difference in the " log ".

所谓的时钟时间，以秒，分，时为单位的时间，在日常生活中广泛使用。本设计采用6个LED数码管显示小时，分钟和秒到24小时的时间，没时间。 80 C51使用的定时器/计数器来实现时钟计数功能。时钟时间是关键的第二个问题，因为第二个是在时钟的最小单位，但只能达到80 C51定时器/计数器的使用时机，是工作方法1，其最大的常规时间， 131毫秒，从一秒差很远。因此，第二个与常规的硬件和软件的集成的计数方法，如定时器的定时时间设定为125毫秒，这个溢出8计数可以是1秒，8个计数，可以使用该软件的方法。使用中断，中断服务程序的溢出计数器的累计数，或得到充分的八秒的时间。然后通过积累的过程中，和数值相比，实现了从几秒钟到几小时的时间。也就是说，超过60分钟，第二单元在每个计数加??1，将继续算下。这样的设计也显示缓冲区成立，在的六个LED显示器上的显示时，分和秒，每两个时间，在内部RAM中，设置了六个单位显示缓冲区，从左至右被存储，则分 - 秒值。