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This separation of ethanol-water azeotrope using glycol as solvent is analyzed. The result shows that when the system is operated twice,the output is the greatest and the consumption is the least.

以乙二醇作溶剂分离乙醇-水物系的实验结果表明,当间歇操作次数为2时,产品采出率最大,单位产品消耗的新鲜溶剂量最少。

Influence of pH of buffer, the temperature, time of hydrothermal treatment on yield of free oil and the quantity of the soluble mass extracted in the buffer and the law of changing of the composition of components in the enzyme hydrolysis system with the pH of buffer, the temperature, time of HTT were studied.

首先优化热处理工艺,考察浸泡液的pH值、热处理时间及热处理温度对清油提取率及缓冲液中可溶性固形物溶出量的影响,同时分析酶解体系各部分组成随缓冲液的pH值、热处理时间及热处理温度的变化规律,为探索水酶法提油工艺的机理创造条件。

With eggs and children artemia were detedcted using nested-PCR. WSSV positive products could be detected in artemia, and DNA sequence of the product accords with the designed specific amplified one according to sequence analysis. The positive rates of wild brine shrimp and filial generation were 58% and 43%, respectively. However, it seems to be no regularity between parents and filial generations positive results. It may not judge whether WSSV could vertically transmit in artemia or not.

检测结果显示:卤虫中可扩增出特异性的、与引物设计吻合的DNA片段;DNA测序分析表明,扩增片段的DNA序列与白斑综合症病毒序列一致;野生卤虫携带白斑综合症病毒的阳性率为58%,实验条件下野生卤虫的后代的阳性率为43%;同一卤虫家系中,亲代与子代携带病毒的情况不完全一致,不能确定白斑综合症病毒可否通过繁殖在卤虫世代间进行垂直传播。

The results indicate that only tungsten oxide grains are formed without sodium sulfate additions, while tungsten oxide whiskers with 0.20.3 μm in diameter and aspect ratio of 5-50 or tungsten oxide nanowires with 1030 nm in diameter and aspect ratio of 50200 are synthesized by some sodium sulfate additions on conditions at 180 ℃ for 1236 h. The phase composition of tungsten oxide whiskers is hexagonal tungsten trioxide. The whiskers/nanowires grow oriently through 〈200〉,〈002〉,〈202〉and〈100〉.

结果表明:未添加硫酸钠时,在180 ℃水热反应12~36 h只能得到氧化钨颗粒粉末,而添加适量硫化钠后,可制备出直径为0.2~0.3 μm、长径比为5~50的氧化钨晶须和直径为10~30 nm、长径比为50~200的氧化钨纳米线;氧化钨纳米线晶体结构良好,物相为六方晶系WO3;微/纳米氧化钨晶须/线主要沿〈200〉,〈002〉,〈202〉和〈100〉方向定向生长。

In the third chapter, the photoabsorption of NO, CO, acetonitrile, acrylonitrile, benzene and toluene of benzene series have been measured by using a homemade experimental apparatus of cylindrical multi-stage ion chamber with high flux SR source. The ionization energies of some electron states are given. Their superexcited states, autoionization Rydberg states have been analyzed. By the analysis and comparison, our results are accurate and credibility.

在第三章中,利用高通量的同步辐射光源和自制的多级光电离吸收池装置,测量了NO、CO、乙腈、丙烯腈、苯系物中的苯和甲苯的光吸收谱,给出了部分电子态的电离能,分析了其中的自电离Rydberg态结构和一些振动能级,对部分结构做了精确指认,经过分析和比较,我们所得的结果比较精确和可靠。

By PCR analysis using specific primers, one specific band at 600~700 bp was distinctively present in cms backcrossed generations. It was genetically stable and cytoplasmically inheritable in the various backcrossed progenies.

根据Brassica nap型细胞质雄性不育相关基因orf222设计兼并引物,利用特异引物PCR方法,分别在不育源、F1、BC2以及BC3世代中扩增出一条600~700 bp 大小的特异条带,而在叶用芥菜保持系中无此条带,具细胞质基因遗传特性。

By theoretical calculation, the frequence of polymorphism between the pair of NILs obtained after 7 generals backcrosses should be 4.5 polymorphic DNA fragments every 100 primers.

在100个随机引物中找到了3个引物在这对抗白粉病的近等基因系中所扩增出的带型出现差异。

Since the installation of fire safety is not a part of a building structure and the seismic building design code does not include fire water pipings, the design of them in Taiwan does usually not consider the seismic effect. This study first collected and summarized the relevant seismic design codes and fire control standards from U.S., Japan, China and Taiwan to understand the internationally adopted methods for seismic from designs of fire water pipings. This study also gathered engineering cases and photographs of the installation of the shock resistance hangers of fire water pipings in high technology factory buildings. Then, this study presented a proposal for seismic design principles. we hope this can attract attentions from government authorities and the fire safety business sector and to rise concerns of the seismic design of fire safety installation; and therefore set up a clear and practical criterion for the engineers and finally reduce the damage of post earthquake fires.

由於消防安全设备向来都是归属於非结构物,国内一般在进行结构设计时并未将消防管路纳入耐震设计的范畴内,本研究系针对建筑物内消防管路的耐震设计为议题,搜集并整理出美国、日本、大陆及国内等相关建筑和消防规范的执行现况,以了解目前国际上在消防管路方面所采取的耐震设计手法,本研究也同时汇整了目前国内重大科技厂房新建工程在消防撒水管路耐震吊架上,所采用的设计案例和实际装置后照片,祈能藉由此案例唤起国内相关主管单位和消防业界对建筑物内消防安全设备耐震力设计的关注,共同研议订定出明确、实用且可供大家遵循的消防安全设备耐震设计准则,以减低国内在地震后火灾所造成的危害。

Four repeatably differential expression fragments were reclaimed from the polyacrylamide gels, re-amplified, cloned and sequenced.

获得5对能够扩增出5条对小麦抗叶锈病近等基因系TcLr41具有特异性条带的引物,分别是P-AC/M-CAA、P-AG/M-CAT、P-AG/M-CCC、P-CC/M-CCA、P-GA/M-CAA。

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I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援,我们正徵召国家所有各种的力量:我们的外交及发展,我们的经济力量与道德劝说,所以你们与其他军人不须要孤独地负起国家安全的责任。

Imagine yourself to be an actor in a play on the stage.

设想你自己是一个演员在舞台上表演。