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- The compounds 1 and 2 probably are the long sought, biological precursor sterols of living organisms for organic matter in the subsurface. 我们认为这类化合物的产生源于其甾类前体在微生物作用下的转化,化合物1和2正是我们长期一直所寻找的存在于地质沉积物中的芳香化甾体在活的生物体中的甾类前体。
- Some biological molecules have the form of a helix. 有些生物分子呈螺旋状。
- The precursor of the modern car was a horseless carriage with a petrol engine. 现代汽车的前身是不用马拉的,装有汽油发动机的车子。
- The school has a large biological laboratory. 这所学校有一个很大的生物实验室。
- biological precursor 前驱物
- Thefirst telephone was the precursor of modern communications networks. 最早出现的电话是现代通讯网的雏型。
- The precursor or stem cell of a plasma cell. 成浆细胞浆细胞的前体细胞或干细胞
- The convention bans the stockpiling of biological weapons. 该公约禁止储存生物武器。
- A precursor cell of a melanocyte or melanophore. 成黑素细胞产生黑素细胞的母体细胞
- Error is often the precursor of what is correct. 错误常常是正确的先导。
- The application of mathematical principles to biological processes. 生物数学应用于生物学过程的数学原理
- The precursor or stem cell of a plasmacell. 成浆细胞浆细胞的前体细胞或干细胞。
- An originator of a line of descent;a precursor. 前辈家族血脉的开始者;先驱
- An originator of a line of descent; a precursor. 前辈家族血脉的开始者;先驱。
- A severe cold may be the precursor of pneumonia. 重伤风可能是急性肺炎的先兆。
- Lysine is a precursor of certain alkaloids. 赖氨酸是某些生物碱的前体。
- The first ribin us a precursor of spring. 头一只知更鸟是春天的先兆。
- The biological study of bodies of water. 水生物学研究水体的生物学
- A series of batch biological reactors are used. 可用一组间歇式生物反应器。
- ARJ21 is seen as the precursor to a jumbo jet. ARJ21型飞机被看作是大型喷气式飞机的前身。
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