Speculative borrowers can meet current interest payments from cashflows but need to "roll over" their debt in order to pay back the principal.
投机借款人能够从现金流中支付现行利息，但需要通过延期偿还他们的债务来偿还债务本金。
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However, the scope of this article is to discuss how to configure Web services in order to specify that one of the tokens in the SOAP header should be used as the JEE principal.
The principal USES of PVC in North America, in order of importance, are pipes, construction materials, consumer goods, packaging, and electrical products (such as wire and cable insulation).