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The XRD analysis revealed that the relative pure nickel metal products with an average size of 12.6 nm could be obtained using PVA as surfactant, a mixture of nickel and nickel sesquioxide products with an average size of 25 nm was obtained using DTAB as surfactant.
结果表明:以PVA作表面活性剂得到相对纯的纳米镍粉,平均粒径约为12.6nm;而以DTAB为表面活性剂得到镍和三氧化二镍的混合物,平均粒径约为25nm;采用PVA为表面活性剂在产品的纯度和粒度上都优于DTAB。
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Conceiving of battery is that one fills the electricity kettle to full, if capacities are 5000 mAh , this 1000 mA are the machine power consumption, therefore thinking that your note type computer consumes power when for 30 Wh , your battery specification is that 14.4 V , 3600 mAh , you battery sigmatism time is about but , if every sends out the electricity hour with 1000 mA discharging speed therefore approximately 5 hours of battery electricity is finished readjusting oneself to a certain extent right away: 14.4 V * 3.6 Ah/ 30 1.728 hours of Wh =.
想像电池是一装满电的水壶,若容量为5000mAh,若每小时以1000mA的放电速度将电放出,所以大约5小时电池的电就被放完,此1000mA就是机器的耗电量,所以当您的笔记型电脑耗功率为30Wh时,而您的电池规格为14.4V,3600mAh,您的电池的使用时间约为:14.4V * 3.6Ah / 30Wh=1.728小时。
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Results displaied age (OR=1.2, 95%CI 1.1-1.3, P=0.006) and width of inner diameter of portal (OR=4.7, 95%CI 1.5-14.6, P=0.008) were independent risk factors for EGVB. However, the width of inner diameter of splenetic vein (OR=0.4, 95%CI 0.2-0.9, P=0.036) was protective factor for EGVB.
结果显示年龄、PV增宽是EGVB的危险因素(P=0.006、0.008),OR值为1.179、4.649,95%CI值为(1.049, 1.324),(1.487, 14.599),而SV增宽是EGVB的保护性因素(P=0.036),DR值为0.423,95%CI值为(0.190,0.944)。
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Over the years, in fact, the weak pattern has become so prevalentthat we use the term regular to refer to verbs that form their past tense by suffixation of -ed. However, there have occasionally been changes in the other direction:the past tense of wear, now wore, was once werede ; that of spit, now spat, was once spitede ; and the development of dove is an additional example of the small group of verbs that have swum against the historical tide.
事实上,多年来弱式动词变得非常普遍,我们用术语规则动词来指那些由加后缀-ed 来构成过去式形式的动词,然而偶尔也会向另一方向发生变化: wear 的过去形式现为 wore ,曾为 weared ; spit 的过去式现为 spat ,曾为 spitede ; dove 的发展是反历史潮流而动的一小组动词中的另外一小组动词的例子
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Over the years, in fact, the weak pattern has become so prevalent that we use the term regular to refer to verbs that form their past tense by suffixation of -ed. However, there have occasionally been changes in the other direction: the past tense of wear, now wore, was once werede ; that of spit, now spat, was once spitede ; and the development of dove is an additional example of the small group of verbs that have swum against the historical tide.
事实上,多年来弱式动词变得非常普遍,我们用术语规则动词来指那些由加后缀-ed 来构成过去式形式的动词,然而偶尔也会向另一方向发生变化:wear 的过去形式现为 wore ,曾为 weared ; spit 的过去式现为 spat ,曾为 spitede ; dove 的发展是反历史潮流而动的一小组动词中的另外一小组动词的例子
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As for chlorophyll, rice and potato have the highest chlorophyll concentration, the value is 25%~35%; the next are corn and sugar cane with value of 20%~30%, and chlorophyll concentration of chestnut is 20%~25%.
对于叶绿素,水稻、马铃薯的叶绿素浓度最高,为25%~35%,其次为玉米、甘蔗,叶绿素浓度为20%~30%,而栗树的叶绿素浓度为20%~25%。
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Results showed LC_(50) of divalent mercury to swordtail fish were 0.84, 1.35, 1.71mg/L in 24h, 48h and 96h respectively, while LC_(50) of tetravalent selenium to swordtail fish were 6.64, 12.59, 17.91mg/L respectively.
结果表明:Hg+2对剑尾鱼的 24、48、96 h的 LC50分别为 1.71、1.35、0.84mg/L;Se+4对剑尾鱼24、48、96 h的Lc50分别为17.91、12.59、6.64 mg/L;在浓度和毒性比都为1∶1的条件下,24 h都表现联合作用,而48 h、96 h则为拮抗作用。
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We studied the optimum medium and hormone combination of callus induction from cotyledons, subculture of callus, shoot regeneration from callus, shoot-extension induction, root induction and identified the chromosome number of the plantlet. The results showed that: MS+2,4-D 2.0mg/L+KT 0.5mg/L, MS+2,4-D 2.5mg/L+KT 0.5mg/L, MS+2,4-D 0+KT 1.0mg/L, MS+KT 0.5 mg/L and basal MS medium. One plantlet among twenty two was determined as a tetraploidy based on the plant morphology, observation of the leaf stoma and chromosome number of the root, other two plantlets represented morphological variation.
结果表明,诱导章丘大葱子叶产生愈伤组织、愈伤组织的继代培养、愈伤组织芽分化、芽点的伸长及诱导生根的最佳培养基及激素配比分别为:MS+2,4-D 2.0mg/L+KT 0.5mg/L、MS+2,4-D 2.5mg/L+KT 0.5mg/L、MS+2,4-D 0+KT 1.0mg/L、MS+KT 0.5mg/L和MS基本培养基;试管苗经驯化移栽后,共有22株成活,成活率为92%,对成活的再生植株进行形态学、叶片气孔及根尖染色体鉴定表明,共有3株发生变异,其中2株为外部形态上的变异,而另一株为染色体的加倍变异。
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The dissipation factor tip-up D tan d , the change of capacitance D C / C 0, the maximum discharge q max and the mean discharge magnitude q mean , A compared investigation of the correlations between V min , V av and service time were compared with those between D tan d , D C / C 0, q max, q mean and respectively.
对大量的不同运行年数的线棒进行了超声波 V min 和 V av 测量,以及介质损耗角增量 D tan d 、电容变化率 D C / C 0、最大放电量 q max 和平均放电量 q mean 等电气测量试验,对比研究了超声参数( V min 和 V av )和电气测量参数( D tan d 、 D C / C 0、 q max 和 q mean )与运行年数的相关性,发现, V min 和 V av 与的相关性很强,相关系数 R 分别为0.892和0.890,而 D tan d 、 q max 和 q mean 与的相关性较弱, R 在0.55~0.60范围内, D C / C 0与几乎没有相关性, R 仅为0.310;采用线性回归分析,分别建立了 V min 和 V av 与的二阶和三阶线性函数的数学模型, R-S 分别为0.828和0.903,并分别提出了最可靠运行年数和置信度为95%的可靠运行年数的预测方法。
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Second, using DBU as the base for enolization of propargylic esters of unsaturated acids 18e-k, we developed a tandem Ireland-Claisen rearrangement /isomerization reactions. It has been shown that the reaction sequence affords triene molecules 42a-b and 43a-b in moderated to high yields. Interestingly, with allyl hexa-3,5-dienoates 18i-j as the substrate, the rearranged products underwent further aromatization to give uniquely substituted benzyl acids 44a-b.
其次,以含有活泼质子的烯酸炔丙酯18e-k为底物,在DBU为烯醇化碱、TMSCl为硅试剂的条件下,底物18e-h发生了Ireland-Claisen重排/异构化串联反应,得到完全共轭的三烯类化合物42a-b及43a-b;而以己二烯酸炔丙基酯18i-j为底物时,重排/异构化后的产物进一步发生电环化等反应最终得到芳构化产物——取代苯甲酸类化合物44a-b。
- 推荐网络例句
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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
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To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
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After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。