Methods Dip way for mosquito and topicd application for housefly.方法分别用浸渍法和点滴法测定淡色库蚊和家蝇的抗药性.Photoperiod produces little influence on the diapause of housefly larvae.光周期对家蝇幼虫滞育的影响不大.Objective : To study the effect of house...
那侦探企图把杀人的罪名加在那个被告的身上.The detective tried to pin the murder on the accused man.证人在她和被告的关系问题上受到讯问.The witness was examined on her relationship with the accused.听了证人对被告的指责,我们大为惊異.We were amazed to hear the witness's de...
还有几次事故主要是起飞时引擎出现故障造成的。There were also several accidents mainly caused by engine failures on take-off.飞机由于发生电力故障而作了临时降落。The aircraft made an unscheduled landing after developing an electrical fault.一些小技术故障解决后，演出终于开始了。Afte...
河水在平坦的河床上减慢了流速.The river slows on the flat bottom.缓慢的流速足以防止还原剂的散失.A low rate is enough to prevent flushing of reductants.进口的流速不等于河水流速.The velocity in the intake is not equal to the stream velocity....