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- sperm penetration path 精子穿入道
- Human sperm after induction of acrosome reaction was pretreated with anti-MR serum and subsequently processed in sperm penetration assay (SPA). 用抗血清处理顶反应后的人精子，并进行去透明带金黄地鼠卵的精子穿透实验（SPA），观察其体外受精情况。
- They cleaved a path through the wilderness. 他们在荒原中开辟出一条路。
- She squelched along the muddy path. 她沿着泥泞小径格吱格吱地走。
- He was destined to plod the path of toil. 他注定要在艰辛的道路上跋涉。
- The path leads to a hill bare of vegetation. 这条小道通向一座没有草木的小山。
- The male sperm fertilizes the female egg. 雄性的精子使雌性的卵子受精。
- The path of civilization is paved with tin cans. 文明的大道，是铺满了空罐头。
- Every day he trod the same path to school. 他每天都走同一条路上学。
- The boy hops the ditch and run down the path. 那男孩跳过沟，沿著小路奔去。
- The mountain path is narrow and rugged. 狭隘的山路崎岖不平。
- A bullet describes a curved path in the air. 子弹在空中作曲线运动。
- The path led through the trees to the river. 那条小路穿过树林通向河边。
- sperm penetration assay 精子穿透测定
- He trundled a wheelbarrow down the path. 他推着手推车沿路走过。
- The trees branch thickly over the path. 此树生枝极多，遮挡小路。
- sperm penetration meter 精子穿透能力计量器
- The rain ran in shallow runnels alongside the path. 雨水流进路边的小河沟里。
- He roughed up the path by kicking at the stones. 他乱踢石块把路弄得高低不平。
- sperm penetration test 精子穿卵试验
