"John, "said the teacher, "if coal is selling at $60 a ton and you pay your dealer $240, how many tons will he bring you?"
“约翰，”老师问道，“如果一吨煤卖60美元，你给卖货人240美元，可以买几吨？”
Coal mines and users are expected to pay less than one dollar for one ton of waste. And the cost for releasing one kilogram of the chemical sulfur dioxide is about 17 cents.
预计煤矿老板和煤炭用户要为每吨废弃物缴纳不到1美元的税，而释放一公斤二氧化硫的成本约为17美分。
We also can do SGS or SABS inspection and any other inspection if only the customer would like to pay the inspection expenses(add usd0.5/ton).
公司也可以在客户愿意承担检验费用（usd0.5/ton）的前提下，加做SGS或SABS检验和其他任何检验。
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