光指示器经常与幻灯片放映机一起使用.A light pointer is often useful with a slide projector.学校的视听设备包括放映机和录音机.The school's audio apparatus includes films and records.电影放映机每秒24次重复这个过程,每次一幅图像.It repeats this process with a new image 24 t...
These are the result of the penetration of the larvae into the crypts.这些是幼虫钻入滤泡的结果.Note the crypts that are lined by numerous goblet cells.表明腺管由很多杯状细胞排列.The villi , crypts, goblet cells and endocrine cells were presen - ...
The team’s defeat is a salutary warning before the World Cup.这次失利是在世界杯比赛之前对整个队的一个有益警示。Everybody knew they could not save themselves from defeat there.谁都知道他们无法摆脱在那里失败的命运。Don't let this defeat dishearten you.不要因这次失败而气...
Popular genetic markers in the aquaculture community include mitochondrial DNA, RFLP, RAPD, AFLP, microsatellite, SNP, and EST markers.目前,在水产养殖种类中使用的遗传标记主要包括线粒体DNA 、 RFLP 、 RAPD 、 AFLP 、 微卫星 、 SNP和EST标记.McDermott suggest...