查询词典 d and c
- 与 d and c 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Pitch circle diameter: d = mz = 3X12 = 36 Tooth crown heights: ha = m (f0 + x)= 3X (l +0.5)= 4.5 Tooth High: hf = m (f0 + cx)= 3X (l +0.25-0.5)= 2.25 Tooth full height: h = ha + hf = 4.5 +2.25 = 6.75 Addendum circle Chemical pumps diameter: Da = d +2 ha = 36 +2 X4.5 = 45 Fixed string tooth thickness: Sxn = m (π/ 2 * cos2a + xsin2a)= 3X (1.387 +0.6428 X0.5)= 5.125 Fixed string of high gear tooth thickness measurement: hxn = m (π/ 8 * sin2a + xsin2a)= 3X (0.7476X0.117X0.5)= 2.42 Modulus coefficient x0.5 m3 O20 ° pressure angle tooth thickness Sxn5.12 fixed string Addendum Coefficient string f1 fixed gear tooth thickness measurement most high hxn2.42 Teeth z12 2, shaft wear and tear maintenance: Axis gear pump wear is mainly because with the support roller shaft at both ends between the friction and wear, so that smaller shaft diameter.
分度圆直径:d=mz=3X12=36 齿顶高:ha=m(f0+x)=3X(l+0.5)=4.5 齿根高:hf=m(f0+c-x)=3X(l+0.25-0.5)=2.25 齿全高:h=ha+hf=4.5+2.25=6.75 齿顶圆直径:Da=d+2ha=36+2X4.5=45 固定弦齿厚:Sxn=m(π/2*cos2a+xsin2a)=3X(1.387+0.6428X0.5)=5.125 固定弦齿厚测量用齿高:hxn=m(π/8*sin2a+xsin2a)=3X(0.7476X0.117X0.5)=2.42 模数m3变位系数x0.5 齿形角o20°固定弦齿厚Sxn5.12 齿顶高系数f1固定弦齿厚测最齿高hxn2.42 齿数z12 2、轴的磨损维修:齿轮泵中轴的磨损主要是因为轴两端与支撑滚针间的摩擦磨损,使轴径变小。
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General Statistics Weight : 2.5 tons Driving : 6-axle electric driving system Main components : Crew chamber for commander and gunner, Image generation system, Instructor room, and Waiting room Training Scope :- Total display system for driver - Automatic fire distinguisher - Comprehensive A/C system - CTIS application
重量: 2.5吨驾驶: 6轴电机驱动系统主要部分组成:乘员室为指挥员和炮手,图像生成系统,指导员室,等候室培训范围:-共计显示系统的驱动程序-自动消防d istinguisher -综合的A / C系统-C TIS应用
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By use of the Fischer-Tropsch reaction in a C-H-O system, we discussed the relationships between inorganic CO〓 and some physical chemistry conditions, such as Oxygen flee degree , temperature, pressure, other objects consistency and catalyzer. a when T=200K~2000K, if f〓>0, the reaction of generating CO〓 will be dominant, CH〓 hardily exists; b when T>1000K, CH〓 is not propitious to exist, carbon in system almost exists in form of CO〓; c the more pressure, the more CO〓 is propitious to exist; d the more consistency of CO, O〓 and H〓O, the more CO〓 is propitious to exist, the more consistency of H〓, the more CH〓 is propitious to exist.
依据C-H-O体系费托反应的简化模型,讨论了氧逸度、温度、压强、其它物质浓度、催化剂等物理化学条件对无机成因CO〓生成的影响,从理论上讨论了在地质环境中,无机成因CO〓存在的物理化学条件:1在T=200K~2000K的温度范围内,体系中一旦氧逸度>0,生成CO〓的反应将占绝对优势,CH〓几乎不可能存在;2T>1000K时,不利于CH〓形成,使体系中的碳主要以CO〓的形式存在;3体系压强越大,越有利于CO〓的形成;4反应物CO、O〓、H〓O的浓度越高,越有利与CO〓的存在,H〓的浓度高有利于CH〓的形成。5地质成藏作用可以经历很长的地质年代,这足以补偿矿物岩石中的Ni、Mo、Fe、Co、Ru等催化性能的降低及其它动力学条件的不足,使得费托反应可能发生,从而生成无机成因的CO〓和烃类。
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Since the species quantity at the shrub, herb and liane in D is more than that in C, The Shannon-Wiener index and the species' evenness showed that human-caused disturbance affected much more to the species at upper communities and the tall trees were not recovered entirely in D.
群落各层次的Shannon-Wiener指数及其均匀度计算表明,人为干扰对群落上层物种多样性影响较大,D群落高大乔木待恢复。D群落经过多年封山育林,由于种类入侵和竞争,正在形成物种更为丰富的当地典型地带性植被类型。
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The daily vaginal smears were checked.The day that vaginal plug was found was considered day 0 of gestation.and then the male and female mice were separated into different cages.The fetal mice were obtained by caesarean on day 18 of gestation.The pregnant rate,embryonic nidation of each group and the length and weight of fetus were recorded.
C∶?C1合笼;次日起每日阴道涂片,以查到阴栓为孕0 d(合笼7 d未见阴栓者,以合笼第4天为孕0 d),并分笼饲养,分别在孕18 d剖腹取胎,记录各组孕鼠受孕及子宫仔鼠着床情况,同时测定胎鼠身长及体质量。
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The synthesis of the pentacyclic skeleton of Et-743 and the construction of the five chiral centers thereof.1. The core pentacyclic skeleton of phthalascidin was constructed with L-dopa as the starting material via thirteen steps. First, two basic synthons, the C-1 functionalized tetrahydroisoquinoline compounds 8 and N-protected Z-dopa derivative 9, were prepared from L-dopa. They were coupled via amide bond to form the dipeptide compounds 10, which were the first key intermediates. Then the primary hydroxyl groups were transformed into the corresponding amino aldehydes 11 via Swern oxidation. Followed by the intramolecular Pictet-Spengler cyclization, the pentacyclic compounds 12 were synthesized.
五环骨架的构建及五个正确手性中心的确立:1.1我们以L-多巴为起始原料,经过多步官能团保护和转化合成了基本结构单元8然后和苯丙氨酸衍生物9,通过缩合反应生成酰胺中间体10,经Swern氧化得到醛化合物11,然后再次利用分子内改良的Pictet-Spengler反应一步构建c,d两环,得到五环骨架化合物12,最后,实现了21-位羰基向氰基的转化,得到了C-1位官能化的化合物14,化合物14不但具有和Et-743一致的五环骨架,而且分子中五个手性中心立体构型也与其完全相同:其中,3,位和13,位的手性中心由原料L-多巴带入,而1,位,11,位和21,位手性中心则通过不对称诱导而确立。
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Result: The hemoglobin was lower in the female group than male group(p<0.001); The endoscopes datum, position and expression of C-erbB-2 protein of both groups showed no statistical difference, but the rate of mucor-bloody stools, change of bowel movement habit, adenocarcinoma, alvine block, mucinous adenocarcinoma, undifferentiated carcinoma, Dukes stage C and D were significant difference(p<0.05) in young group than old group.
目的:分析青年大肠癌的发病特点和病理特征与中老年大肠癌的不同,为青年大肠癌的预防和治疗提供理论依据。方法:总结我院5年间收治的92例年龄低于35岁青年大肠癌资料进行筛选和研究,对患者性别、内镜资料、临床表现、病理及c-erbB-2蛋白表达和治疗情况进行统计分析,与同期中老年病例作对照。
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Prednisone and the recipe of nourishing Yin and reducing Heat group:prednisone is 7mg/kg/d(equivalently 0.8mg/kg/d for human),to match suspl.0.2ml by isotonic Na chloride,intragastric administration once per day;:dosage of the traditional Chinese medicine is 0.2ml apozem.
C。滋阴清热方组:中药剂量,共0.6ml(0.4 g)煎剂,每日灌胃一次。 D。滋阴清热方+强的松组:强的松为7mg/kg/d,用生理盐水配成混悬液0.2ml;中药剂量共0.4ml(0.4 g)煎剂。
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Administration a Assisting to arrange installation and fix work for engineers b Files management and sales statistics c Inputting business related records into SAPRequirements:a College degree or above b 1-3 years working experience in marketing or sales work, preferably in medical instrumentation.c Good command of English and computer skillsd Active, resourceful and self motivatede Loyal, independent working style, creativef Good communication skill; good team playerg Be passionate and always keep positive attitude to work hAble and willing to travel frequently minimum 2 weeks per month
将业务相关记录更新到SAP系统中应聘要求:A。专科以上文凭,学习、接受能力强B。 1-3年市场销售工作经验,医疗设备领域的工作经验更佳C。英文口语良好,可以进行读、写、工作交流,电脑操作熟练D。有客户服务意识,能独立进行工作,善于进行自我管理,自我激励E。对工作充满热情,始终保持积极的态度F。善于沟通,具备团队合作精神G。形象端庄,女性优先H。适应经常性出差(至少2周/月)应聘者请提供中英文简历、照片各一份。
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The first fiction writer in the United States to achieve international fame was A B C Washington Irving, who wrote many stories, included " Rip Van Winkle" and "The Legend D of Sleepy Hollow".
key:D 分析:第一步分析空前后的关系,发现D出现错误,应该表主动才对。必要知识点:考点是分词结构。D前面已经是一个完整的句子,D改为including做伴随状语,说明前面的主句。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。