无双的

Three-dimensional stress analysis was carried out for screws with four different radii and cross-sections of the taper screw including rectangle sections without, with single and double round angle transition for strengthening, and trapeziform section.

在此基础上应用ANSYS软件对无圆角、单圆角、双圆角矩形和梯形四种截面的螺杆进行了三维应力分析。

The optimum conditions of synthesis were determined as follows:molar ratio of 2,4-di-t-amylphenol and anhydrous trimeric acetaldehyde 2∶1.2,amount of water 180 g,amount of emulsifier 0.5 g,and amount of catalyst 11.0 g at reacting temperature 80～83℃ for 5 h.

以2 ，4-二叔戊基苯酚、无水三聚乙醛为反应原料，采用含有表面活性剂、酸性催化剂的水作为反应溶剂，缩合反应合成2，2′-亚乙基双(4，6-二叔戊基苯酚)。

SN74LS02N Pinout: The NL27WZU04 is a high performance dual unbuffered inverter operating from a 1.65 to 5.5 V supply.

SN74LS02N引脚说明：该NL27WZU04是一个高性能的无缓冲双逆变经营从1.65至5.5 V电源供电。

We also compared the rejoining ability of DSBs in both unirradiated and irradiated H1299 cells by using a DSB rejoining assay.

我们也利用DNA双股断裂再结合线性冷光报导质体之能力的实验来比较细胞株在有无游离辐射处理。

Bimetal not currents through, avoid the impact from the effects of heat, temperature changes

双金属片无电流通过，避免了自热效应的影响，因此温度变化小，寿命长。

Pair of fish infant fine arts train school to there be no the especially obvious advantage and characteristic in Chongqing city the same kind training school , set up time not also growing, idea and corporate culture not forming self enterprise; Identification system is not really standard , oneself fixes position being not enough to make clear that.

双鱼幼儿美术培训学校在重庆市同类培训学校中无特别明显优势及特色，成立时间亦不长，没有形成自己的企业理念和企业文化；识别系统不甚规范，自我定位不够明确。

Lusters of mutations in CP region, a A-to-C mutation at necleotide 1726, a A-to-T mutation at nt 1727 and a C-to-G mutation at nt 1730, were observed in eight of eleven AsCs developing acute exacerbation, Moreover, the clustering mutations were found negative in the state of AsC and positive after acute exacerbation in a subject.

P聚集变异与AsC首次肝炎急性发作有关。 11例中，8例出现CP聚集变异。且 1例在AsC状态时无CP变异，肝炎发作时出现CP聚集变异。(3)CP聚集变异合并CP双变异的乙肝患者，表现为重型肝炎或迅速进展为肝硬化；HBVDNA高水平；HBeAg/抗HBe转换。

Methods Twenty- four male adult rabbits were made the model of 15mm gap on buccal branch of the facial nerve under sterile condition.

成年雄性新西兰兔24只，无菌条件下切断双侧面神经下颊支，制成15mm 的兔面神经下颊支缺损模型。

Is a shareholding enterprise specializing in research,development,manufacturing and marketing of 10 major lines of products including SF-1 oil-free self-lubricating sliding bearings;SF-2 boundary lubricating bearings,bushes,flanged sleeves and thrust washers;JDB copper 500# solid inlaid lubricating bearings,sliding blocks and slides;SF-S bimetal bearings;FB090 bronze bearings;FZ steel ball retainers;FR PTFE-reinforced soft strips;FD copper-bearing PTFE strips;and FU copper-based sleeve bearings..

嘉善博克莱滑动轴承有限公司是专业研究、开发制造销售SF-1无油自润滑动轴承，SF-2边界润滑轴承、轴瓦、翻边衬套、止推垫片、JDB铜500#固体镶嵌式润滑轴承、滑块、滑道、SF-S双金属轴承、FB090青铜轴承、FZ钢球保持架、FR四氟增强软带、FD含铜四氟带、FU铜基含油轴承等十大系列产品的股份制企业。

objective inquire into the value of eet and cag in the diagnose of coronary heart disease.methods review and analyze132cases of positive eet and77cases of results of cag.results positive cag:58cases（75%）;negative cag:19cases（25%）;single-branch pathology18cases;double-branch pathologies:40cases;many-branch pathologies:19cases;stc extension:25cases;s-wave deepeness:21cases;u-wave inverˉsion:2cases.conclusion among the patients of eet,dangerous factors conform to the results of cag inclinical symptom relatively,among females,young people and non-clinical symptom,false positiveness is more.

目的 探讨活动平板运动试验与冠状动脉造影在冠心病诊断中的价值。方法对132例活动平板运动试验阳性，77例冠状动脉造影结果进行回顾性分析。结果冠状动脉造影阳性58例（75%），阴性19例（25%），单支病变18例，双支病变40例，多支病变19例，stc延长25例，s波加深21例，u波倒置2例。结论在活动平板运动试验患者中，有危险因素和临床症状与冠状动脉造影结果较相符，女性、年轻人和无临床症状者假阳性较多。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失