查询词典 chain reaction

We investigated the composition of the dinoflagellate genus Symbiodinium in 22 species of scleractinian corals from 14 genera and eight families in Luhuitou fringing reef of Sanya, using polymerase chain reaction of the large subunit rDNA and restriction fragment length polymorphism.

本研究利用PCR技术扩增核糖体基因大亚基片段以及限制性片段长度多态性的方法，对海南三亚鹿回头岸礁的8科14属22种造礁石珊瑚的共生藻组成进行了研究。

Detection of 98% of DMD/BMD gene deletions by polymerase chain reaction.

应用14对引物多重聚合酶链反应作假肥大型肌营养不良症的产前基因诊断。

This idea was called the domino theory, since it focused on the possibility that if South Vietnam fell under Communist control, all of Southeast Asia would follow, in effect setting off a Communist chain reaction throughout many countries.

这个想法被称为多米诺理论，因为它的重点是有可能，如果南越属于共产党控制，所有的东南亚将遵循，实际上引发连锁反应整个共产党许多国家。

As successive administrations made the geopolitical argument for intervention in Indochina, they often framed the discussion around the domino theory, which linked the outcome in Vietnam to a chain reaction of regional and global effects.

历届政府引述干涉印支的论据时，往往将多米诺骨牌理论作为讨论的基础——将越南的失败同地区和全球的连锁反应联系起来。

Methods RPE cells were exposed to shear stress of 2 dyne/cm2 for 0, 0.25, 0.5, 0.75, 1, 1.5, and 3 h. Reverse transcription polymerase chain reaction was used to detect the levels of c-fos and c-myc mRNA in RPE cells. One-way analysis of variance was used to compare the differences.

用2 dyne/cm2的剪切力作用于体外培养的人RPE细胞，作用时间分别为0、0.25 h、0.5 h、0.75 h、1 h、1.5 h和3 h，采用逆转录聚合酶链反应观察c-fos和c-myc mRNA的表达变化，并采用单因素方差分析比较各时间点之间表达的差异。

Objective To investigate a rapid diagnosis of ectogenesis bacterial endophthalmitis using polymerase chain reaction.

目的 探讨聚合酶链反应技术快速诊断外源性细菌性眼内炎的价值。

The venom of elapid snakes contains a number of small proteins that display a broad spectrum of pharmacological activities.In study on the neurotoxin from the venom gland of Bungarus multicinctus,five cDNA sequences (MNCTL1-a,MNCTL1-b,MNCTL1-c,MNCTL1-d and MNCTL2) encoding two novel proteins were obtained from the total RNA by reverse transcription-polymerase chain reaction.

采用SMART技术和RT-PCR方法，从同一个银环蛇毒腺中克隆到了5 种尚未报道过的心脏毒素类似物全长cDNA序列（MNCTL1-a、MNCTL1-b、MNCTL1-c、MNCTL1-d和MNCTL2）。5种序列中，MNCTL1-b、MNCTL1-c、MNCTL1-d和MNCTL2的长度均为505 bp，包括5′非翻译区32 bp，3′非翻译区212 bp和其余261 bp组成的一个完整开放阅读框；MNCTL1-a 由于3′非翻译区24 bp的缺失，全长cDNA仅为481 bp。

Polymerase chain reaction is amplified and sequenced to determine the type of emm genes.

聚合酶链反应扩增并进行测序从而对emm基因进行分型确定emm基因的型别。

Methods:CBFβ-MYH11 fusion transcripts and inv (16) were analyzed by reverse-transcriptase polymerase chain reaction and fluorescence in situ hybridization,respectively,in acute myelomonocytic leukemia(M4) with or without eosinophilia.

用逆转录-聚合酶链反应和荧光原位杂交技术分别检测急性粒-单核细胞白血病(M4)患者的CBFβ-MYH11融合基因转录本和inv(16)。

Objective To identify gene mutation of a epidermolysis bullosa pruriginosa family. Methods Polymerase chain reaction, DNA squencing, multiplex PCR using allele-specific oligonucleotide primers.

采用聚合酶链反应，DNA直接测序以及等位基因特异引物的多重PCR方法，对一个痒疹样大疱性表皮松解症家系40人（其中患者23例）进行基因突变情况检测。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。