Eve, squinting at the clock, saw it was just on 7 a.m.伊夫眯着眼瞥了一下钟，看到差不多是早上7点钟。The Visitor Centre is open daily 8.30 a.m. – 4.30 p.m.游客中心每日上午8：30至下午4：30开放。Everyone had already assembled in the boardroom for the 9:00 a.m. s...
The average dark current is often eliminated by means of a zeroing circuit.平均暗电流常利用调零电路消除.The system includes the modules of data acquiring, digital filtering, data conversion, digital zeroing and adjusting.该系统包括数据采集 、 数...
机修工努力维持直升机的飞行性能。The mechanics work hard to keep the he-licopters airworthy.机修工立即找到了出故障的地方。The mechanic located the fault immediately.这个机修工给我修汽车.The mechanic repaired my car....