Based on his experience with the Science Barge, he has devised a rule of thumb: generating enough electricity using solar panels requires an area about 20 times larger than the area being illuminated.
基于他在科学驳船上的经验，他制订了一个经验法则：使用太阳能电池板产生足够的电能需要一块约20倍以于照明面积的电池板。
Meanwhile, though barge freight rates ended about 8% lower during 2007, they followed a record year and ended the second highest on record.
另外，尽管驳船运价在2007年结束时下降了约8%，但全年的运价水平仍创下第二高纪录。
Tensioner system is a key attachment of pipe laying barge. Its dynamic behaviors directly influence the offshore pipe laying operations. But the dynamic research about tensioner is very rare.
张紧器系统是与铺管船配套的关键设备，其动态行为直接影响整个海上铺管作业，但是有关张紧器系统的动态研究却很少。
Tensioner system is a key attachment of pipe laying barge. Its dynamic behaviors directly influence the offshore pipe laying operations. But the dynamic research about tensioner is very rare.
张紧器系统是与铺管船配套的关键设备，其动态行为直接影响整个海上铺管作业，但是有关张紧器系统的动态研究却很少。
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