At last, the recent development of ultrasonic backscatter imaging is reviewed.最后, 简要介绍了超声背向散射成像的新进展.Officials at the Transportation Administration say they have already tried out a handful of backscatter scanners.运输安全局的官...
What moves him is the desire to unravel the mysteries of nature.推动他们的还是解开自然之迷的愿望.A young mother has flown to Iceland to unravel the mystery of her husband's disappearance...一位年轻的母亲飞抵冰岛,要揭开她丈夫失踪之谜。The stairway carpet...
他用这个节目的录像带教授英语。He uses tapes of this program to teach English.他甚至将记录他以前伟绩的录像带通通锁起来了。He had even locked away all the videos of his previous exploits.采用了演示及播放电影和录像带的形式,以起到教育作用。Demonstrations, films, and videotapes are show...
腮腺炎常引起血清淀粉酶增高.The blood amylase is usually elevated as a result of parotitis.淀粉酶 、 蛋白酶和其他不贵的大品种酶都是这样使用的.Amylase, proteases and other inexpensive bulk enzymes are used in this way.我们应确定糊精的值以便于存在时我们明确地评估淀粉酶的活性.Dextrin valu...