Acceding special operator into the presented model, both the calculation accuracy and the convergence speed can be improved.

加入特殊算子改进后，可进一步提高精度，加快收敛速度。

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As a partner, the tour operator might also have a special room reservation rate.

作为合作伙伴的旅游公司可能具有一个特定的订房率。

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XQuery does not have a special function or operator similar to the relational "between" predicate.

XQuery 没有类似于关系查询中 “between” 谓词的专用功能或操作符。

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Any customers who do not sign up for a so-called Eurotariff will automatically be put on one from 30 September, unless they are already on another special roaming deal from their mobile phone operator.

BBC: Chatting abroad will now become much cheaper

"The FBI is asking anyone with information about the unmanned aircraft or the operator to contact us, " said Special Agent in Charge John Giacalone.

CNN: Drone came within 200 feet of airliner over New York

Nevertheless, Teletec is offering up a similar service which doesn't require a special phone, but instead utilizes any internet-connected device to display text that an "online operator" channels to their screen.

ENGADGET: Telecoms opening up for deaf callers