From the structure of the circuit is divided into cross - straight - to pay and pay - cycloconverter .从其电路的结构上分为交 — 直 — 交和交 — 交变频器.Circuit - oriented model of cycloconverter is developed by adding tube - changing mode an...
As the boat plodded into British waters and up the English Channel, Customs had their eye on her.那艘船缓慢驶入英国水域，沿英吉利海峡向北时，海关一直密切关注着它。Did you have to pay customs duty on that?你们必须为此给顾客付款 吗 ?...components similar to those sei...
You're doing a great job! Keep it up!你们干得非常棒！继续好好干吧！Keep it up! Final victory is in sight.坚持下去! 最后胜利已经在望了.There are fears that he will not be able to keep it up when he gets to the particularly demanding third year....