已经分化的组织分泌物称为抑素.Substances differentiated tissues secrete are called chalone.目的:在酿酒酵母中表达和分泌人血管抑素.To express and secrete human angiostatin in S . cerevisiae.目的 观察生长抑素十四肽 ( 施他宁 ) 对食管静脉曲张破裂出血的治疗效果.Aims : To evaluate the effe...
背面用 灰白色 的毛被, 叶片基部楔形; 花冠红色苯胺染料玫瑰色.Leaf blade base cuneate, abaxial surface with gray - white indumentum; corolla magenta - rose.喀什米尔羊身上的外层毛被称为保护毛.The outer hair of the animal is called guard hair.绵羊的毛被剪下做成羊毛.A sheep'...
Astronomers have discovered a distant galaxy.天文学家们发现了一个遥远的星系。The Galaxy consists of 100 billion stars.银河系由1,000亿颗恒星组成。The spaceman flew through the galaxy at the speed of light.太空人以光速穿越银河系.We report Chandra observations ...
从他们坐的地方就能看见主航道.From where they sat they could get a glimpse of the main stream.暴风雨使货船偏离了主航道.The storm has driven the cargo ship off of its main course.主航道乙段从11号灯浮标到22号灯浮标.Main Channel Part B is from light buoy NO . 11 to...