A single archesporium differentiates immediately below the nucellar epidermis, it functions directly the megaspore mother cell.孢原细胞处于珠心表皮之下, 直接起大孢子母细胞的功能....
For 14 years he collared hitchhikers who passed through town and quizzed them mercilessly.14年来他跟踪调查那些经过城镇的流浪汉并无情的挖苦他们.Chris was looking spruce in his stiff-collared black shirt and new short hair cut.克里斯穿着硬领黑衫，新理了短发，看起来整...
He became a fanatical Anglophile.他成为狂热的亲英分子。Top of the range Scotches attract a fanatical following among whisky buffs.顶级苏格兰威士忌在威士忌酒酒迷中吸引了一批狂热的拥趸.He is a fanatical hunter.他是个着了迷的猎手....
发动机突然反冲.The engine kicked back.警察再次开火，紧抵着反冲机构，不断向袭击他的人射击。The policeman fires again, tensed against the recoil, unleashing round after round at his assailant.我把家伙组装起来，检查了一下击发和反冲机构，装上子弹。I assembled the weapon, checked the ...
钢瓶是中空的管道,封闭的底部是凹入的,这样可以直立起来.A cylinder a hollow tube a closed concave base that permits the cylinder to stand upright.水平过渡交叉挡板应扣住, 凹入并隐藏.Horizontal intermediate cross rails, which are required for locks, will be recessed...