某些脉冲星发送脉冲比地球上最精确的时钟都准时。Some pulsars keep time better than the earth's most accurate clocks.脉冲通常以微秒计。The pulse is usually timed in micro-seconds.光化学反应使光变为电脉冲。The photochemical reactions transform the light into elect...
Marinate the chicken for at least 4 hours.把鸡肉腌泡至少4小时。Put it in a screw-top jar with French dressing and leave to marinate.将它与法式色拉调料一同放入一只带螺旋盖的罐中腌泡。Marinate the veal in white wine for two hours.把小牛肉用白葡萄酒浸泡两小时....