In addition, it is difficult (and sometimes impossible) to propagate a transaction across certain heterogeneous platforms or over HTTP (as in the case of Web services).

此外，也很难(有时几乎不可能)在某些异构平台或HTTP之上(像在使用Web服务情况下)传播事务。

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Where it is impossible to ascertain the transaction value, the dutiable price shall be assessed by the Customs in accordance with law.

成交价格不能确定时，完税价格由海关依法估定。

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