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nnnlanbo

新虫 (初入文坛)

[求助] 请帮助润色--能源

优化后的供热系统在各工况下的exergy效率保持在50.6%-51.2% 的较高水平上
请比较那个好些,并且润色
1)the exergy efficiencies of the optimized heating systems under different working conditions are kept in a good range of 50.6%-51.2%.

2) the exergy efficiencies of the optimized heating systems under different working conditions are held in a high level of approximately 51%.
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犇�?

铁杆木虫 (职业作家)

院士

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感谢参与,应助指数 +1
hanches: 金币+1, 热心应助的奖励~~~~ 2013-05-22 19:24:20
nnnlanbo: 金币+8, ★★★很有帮助, 请问:higher level 和about 50.6%-51.2%之间需要一个连接词吗? 2013-05-23 09:39:50
1)the exergy efficiencies of the optimized heating systems under different working conditions are remained at a higher level about 50.6%-51.2%.
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2楼2013-05-22 14:58:46
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myIDname

木虫 (著名写手)

人民大会堂首席清洁工

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感谢参与,应助指数 +1
zhtear99: 金币+2, 感谢热心应助,BB奖励下~~ 2013-05-25 08:26:10
after the heating systems were optimized, the exergy efficiency under various working conditions ranged between 50.6% and 51.2%.
1.  如果你想要表达这个水平高,那还需要其他的内容,或者说比较的对象,比谁高;

2. 如果是你做的东西,用过去式。
我们这里有勇敢的人民/荜路蓝缕以启山林/我们这里有无穷的生命/水牛稻米香蕉玉兰花
3楼2013-05-23 11:10:06
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犇�?

铁杆木虫 (职业作家)

院士

???????:
2?: Originally posted by ??? at 2013-05-22 14:58:46
1??the exergy efficiencies of the optimized heating systems under different working conditions are remained at a higher level about 50.6%-51.2%.

???????????? that is
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4楼2013-05-23 16:00:58
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