四
- 与 四 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Bis(1,2,3,4-tetrahydroisoquinoline-2-ylmethyl) HBr salt (K2) guest has been synthesized from 1,2,3,4- tetrahydroisoquinoline and ethylenedibromide. The self-assembly interaction models of cucurbit[8]uril (Q[8]) with this synthetic guest have been investigated by using 1H NMR technique, single crystal X-ray diffraction determination and theoretic calculation method.
以用1,2,3,4-四氢喹啉和二溴乙烷合成的二(2-亚甲基-1,2,3,4-四氢异喹啉)的溴化氢酸盐为客体,八元瓜环为主体,利用1H NMR技术,单晶X射线衍射方法以及理论计算等方法,考察了两者的自组装模式。
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Thursday (6 / 5) Special cold Culler County Bo Kalan village of the town of Kember music flash floods , killing four people, two seriously injured, a number of houses were destroyed, in addition to flash floods also hit Wednesday night special cold Culler County The other four villages in the town ...
周四(6/5)特冷卡勒县博卡兰镇肯伯乐村发生暴洪,造成四人死亡、二人重伤,一些民房被冲毁,此外周三晚暴洪也袭击特冷卡勒县的其他四个镇的村庄。。。。
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A 2D harmonic model based on the quaternion was constructed,and a special four-order cumulant was defined.
构造了合适的基于四元数的二维谐波模型,根据此模型定义了特殊的四阶累积量切片,分析了加性高斯在有色噪声中的二维三次非线性相位耦合。
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Residential heating prices will be the existing building area heating 15.4 yuan per square meter adjusted to 20 yuan; government organizations and institutions, businesses, hotels, restaurants, as well as the heat-funded enterprises will be the current price per square meter construction 18.5 yuan, 21 yuan, 24 yuan for the 26 Unity adjust.
住宅供暖价格将在现有建筑面积采暖十五点四元,每平方米调整为20元;政府组织和机构,企业,宾馆,饭店,以及热资企业将是目前的价格为每平方米建筑一十八点五元, 21元,二十四元为26统一调整。
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Through using Mythylene DinitrAmine as rude product, the knowledge of its reaction properties in different phases have been increased, Through using Mythylene BisAcetAmide as rude product, intermediates which include 1,3-Diacetyl -4,5-dihydroxy -1,3-diazacyclopentane and 1,3-Diacetyl- 4,5-diacetoxy-l,3-diaza cyclopentane have been obtained. 2,4,6,8-tetracetyl- 2,4,6,8-tetraaza bicyclo[3,3,0]octane which can be used to produce Bicyclo-HMX by nitrolysis was also produced. Through using Mythylene BisFormAmide as rude product, intermediates which include 1,3-Diformyl-4,5-dihydroxy- 1,3-diazacyclopentane and 1,3-Diformyl- 4,5-diacetoxy-l,3-diazacyclopentane have been abtained.
以亚甲基二硝胺为初始原料,加深了对亚甲基二硝胺在不同反应相反应特征的认识;以亚甲基二乙酰胺为初始原料,制备了中间体1,3-二乙酰基-4,5-二羟基-1,3-二氮杂环戊烷和1,3-二乙酰基-4,5-二乙酰氧基-1,3-二氮杂环戊烷,最终制备了可被直接硝解为双环HMX的2,4,6,8-四乙酰基-2,4,6,8-四氮杂双环[3,3,0]辛烷;以亚甲基二甲酰胺为初始原料,制备了中间体1,3-二甲酰基-4,5-二羟基-1,3-二氮杂环戊烷和1,3-二甲酰基-4,5-二乙酰氧基-1,3-二氮杂环戊烷。
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Part four will prove the following 4 theorems : theorem 1 :the curvature and torsion of the locus of foot point of the perpendicular line between the origin and the tangent line of the cylindrical spiral remains to be function t , but not trigonometric function t .
第四部分证明四个定理分别为定理1 由坐标系原点至圆柱螺线的切线所引垂线的垂足的轨迹曲率和挠率仍为t的函数,但不是t的三角函数。
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In chapter four, the transmission mechanism of non-contact ultrasonic driving based on traveling wave with cylindrical vibrator is analyzed systematically.
并根据电路三相电路和三相负载的连接原理,推广到圆筒型非接触超声波驱动器的四相电路和四相负载的连接方法,提出了星形—星形接法和四边形—星形接法。
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Feeding patterns of antenna array are researched and feeding network is designed. Three-unit and four-unit models for the cylindrically conformal microstrip antenna array are set up and their directivities are simulated respectively. Through the comparison of the simulation results, the four-unit array is proved to be feasible.
对天线阵列的馈电方式进行了研究,设计了天线阵列的馈电网络,建立了三单元和四单元柱面共形微带天线阵列模型,对方向性分别进行了仿真分析,比较仿真结果,选用了满足工程需要的四单元阵列。
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Chapters four, five and six are supposed to be the cynosure in this thesis. In chapter four, a general description of the development of equivalence theory is presented. In comparison with the equivalence theories presented by Jacobson and Catford, the author elaborates on Nida's equivalence theory, especially the essence of his functional equivalence theory.
第四,五,六章是本论文的核心部分,在第四章,作者描述了对等理论的发展和演变,并详细介绍了奈达的翻译对等理论,尤其是功能对等理论,为全文做了理论铺垫。
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To these two must be added Cyprian of Carthage (d. 258), who wrote "De oratione dominica", and St. Chrysostom d.
这两个必须加上塞浦路斯的迦太基(四258 ),他写道:"德oratione多米尼克",和圣金口(四407 )。
- 推荐网络例句
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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)。
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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%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。