The microscope contains a few hundred dollars-worth of electronic bits and bobs.这架显微镜内有价值数百美元的电子元件。An object was magnified 200 times by the microscope.这架显微镜能把物体放大二百倍.The students were looking through a microscope at plan...
The electron microscope uses a beam of electrons to produce images at high magnifications.电子显微镜利用电子束形成高倍影像。The structure of molecules can be seen under an electron microscope.分子的结构可在电子显微镜下观察到.The electron microscope uses...
Scatter the grass seed over the lawn.把草籽撒到草坪上。When the fire had at last been put out, the forest authorities ordered several tons of special type of grass - seed which would grow quickly.在火终于被扑灭的时候, 森林管理局订购了好几吨特殊速生草籽.Pre...