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。

youdao

Operation Certificate of Special Operators, Such as Lift Operator, Electrician. Fork Lift operator, Electric welding worker, Kitchen Worker' Health Certificate, & Safety Officer Certificate Etc.

特种工上岗（如电梯工， 电工， 叉车工，电焊工， 厨工健康证， 安全主任证等）

youdao

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。

youdao

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