Cetaceans reduce the number of breaths they take during rest periods.鲸类动物在休息时减少它们的呼吸次数.It is not clear whether cetaceans undergo dream sleep.鲸类动物是否经历梦睡眠还不清楚.Missing until recently were fossils clearly intermediate, or tr...
In micrographics a device for holding a frame, or frames, of microfilm.在缩微图形技术中,用于固定一帧或多帧缩微胶片的装置.In micrographics, a device that enlarges microimages for viewing.在缩微照相技术中, 放大图形以便观察的一种设备....
...the texture and colour of the skin, the contours of the body...皮肤的肌理和颜色，身体的轮廓I cradled my video camera nervously on my lap, but its cold contours did nothing to comfort me.我紧张地把摄影机架在大腿上，但是它冰冷的外形并没能给我任何安慰。Note that the...