SECTION IV SUB-CLAUSES I. The adverbial clause 1. Special translation technique for some patterns ()not.until 该机器直到接收到信号后才工作 The machine will not work until it receives a signal (2)before Something further must be done to the amplified signals before they can be sent to the transmitting antennaSECTION IV SUB-CLAUSES I. The adverbial clause 1. Special translation technique for some patterns (1) not…until 该机器直到接收到信号后才工作。 The machine will not work until it receives a signal. (2) before Something further must be done to the amplified signals before they can be sent to the transmitting antenna