When Szilard told Einstein about chain reactions, he was astonished: "I never thought about that at all, " he said.
当Szilard告诉他核爆炸的链反应时，爱因斯坦吃惊地说：“我从未想过那些”。Polymerase chain reaction (PCR): Laboratory technique used to make numerous copies of specific DNA segments quickly and accurately.
聚合链反应：能快速、准确复制新大量特定去氧核糖核酸实验室技术。Extracted DNA from the clinical samples, and investigated the occurrence of Enterococcus faecalis by means of the polymerase chain reaction.
提取样本基因组DNA，聚合酶链反应检测粪肠球菌存在。Polymerase chain reaction did not show B cell or T cell rearrangement.
多聚酶链反应没有显示B细胞或T细胞基因重排。The bottle can be manufactured in a variety of material types, including clear and coloured PET and 50% post-consumer recycled PCR polymer.
瓶子可以制造的材料类型，包括明确的和有色PET和50%后的各种消费后回收聚合酶链反应的聚合物。Unfortunately, many human skeletal remains do not contain original DNA amplifiable by polymerase chain reaction (PCR).
不幸的是，许多人的遗骸不包含原始的DNA扩增的聚合酶链反应（PCR）。Methods Polymerase chain reaction (PCR) was used to check and measure the tubercle bacillus DNA(TB-DNA) in malignancy tissue.
方法采用聚合酶链反应（PCR）技术检测恶性肿瘤组织中结核杆菌DNA（TB-DNA）。Polymeric thickener for latex can be prepared from waste polyacrylonitrile (PAN)via alkaline hydrolysis and chain extension.
以废腈纶为原料，经碱法水解反应和扩链反应制取乳液用高分子增稠剂。In order to ignite and burn, a wildfire requires heat, fuel and oxygen. These combine to produce a chemical chain-reaction.
森林火燃烧需要热量、燃料和氧气，当这三者都有时便会发生一个化学链反应。