例句與造句

1. Specifications for variable - ratio transformers having current collectors which are moved transversely in the direction of the windings
   裝有可在繞線方向橫向移動(dòng)集電器的可調(diào)無線電變壓器
2. It's difficult to find variable-ratio transformer in a sentence. 用variable-ratio transformer造句挺難的