前提是这些技术必须符合美国国税局制定的能效标准（地热系统、微型燃气轮机和热电单位可获得10%的税收抵免）。
Geothermal systems, microturbines, and combined heat and power units are eligible for a 10% credit.
美国国税局的上述数据是在对退税数据进行抽样调查后得出的，是统计“调整后毛收入”的副产品。这一收入是指总收入减去赡养费和个人退休帐户缴款等无需纳税部分后的收入。
The IRS data, based on a large sample of tax returns, are for 'adjusted gross income, ' which is income after some deductions, such as for alimony and contributions to individual retirement accounts.
国税局（美国国内税局）编号、雇主识别编号、社会保障卡号、或海关边境保护局编号这些确定的号码表明了为进口行为：有义务、有责任遵守所有的相关法令和管制，并承担进口所带来的任何后果。
IRS number, EIN, SSN, or CBP assigned number of the entity liable for payment of all duties and responsible for meeting all statutory and regulatory requirements incurred as a result of importation.
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