by:dee
Although experienced people can easily by the weight of liquefied petroleum gas tank to determine the remaining amount, but most people have no such experience, even though there may not be very accurate. Especially in the promotion of conservation today, many people will wait until the LNG Caiken completely replaced after use, of course, this is the virtue of saving advocated.
original link:http://www.newstm.com/article.asp?id=4726
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