比
- 与 比 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It is revealed that both the roasting and cooling air flow run radially at inlets and then run slantingly upwards or downwards into roasting-preheating zone inside IVAC. And the gas flow in the whole soaking zone is weakened. There are possibly three gas flow patterns in PSF, which are mainly dependent on the ratio of inflow, i.e., the greater the ratio is, the higher the downward roasting air flowrate and the lower the upward air flowrate will be. The critical ratio of inflow mainly depends on the constructional parameters and packed bed conditions of PSF.
结果表明:焙烧风和冷却风在进口处呈放射状,之后斜向上或斜向下分别流入焙烧-预热带和导风墙内;整个均热带内气流较为薄弱;炉内存在三种气流分流的可能,流入风量比是决定气流分流的最主要因素,其中,流入风量比增加,焙烧风下行趋势增大,而冷却风上行趋势减小;临界流入风量比主要取决于结构参数和料层情况。
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Investigating the influences of processing parameters on the C/Si molar ratio of resulted nanosized SiC powders indicated that there was a direct pyrolytic reaction from DMS to SiC as well as the previous proposed two-step reaction. Under the optimized processing conditions, the silicon carbide powders of homogeneous particle size distribution, spherical shape and stoichiometrical C/Si molar ratio are obtained. The silicon carbide particle consists of β-SiC crystallite arranged randomly.
论文系统研究了工艺条件对产物粉体C/Si摩尔比、粉体颗粒尺寸和组成粉体的SiC微晶尺寸的影响;研究了粉体制备过程中可能发生的化学反应,提出了反应过程中除了分步进行的生成SiC的反应外,同时在高温区还存在一步完成的生成SiC的化学反应的观点;通过调整工艺参数,制备得到了粉体尺寸分布均匀、呈均匀球状、C/Si摩尔比符合化学计量比的颗粒尺寸为40nm的纳米SiC粉体。
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Thiobarbituric acid was synthesized by sulfourea and diethyl malonate in sodium alcohol and 5-Arylidene thiobarbituric acid was prepared by the Knoevenagel condensation reaction from benzaldehyde and thiobarbituric acid.
采用丙二酸二乙酯和硫脲在乙醇钠存在下合成了硫代巴比妥酸,再分别采用固相反应和水相反应,由硫代巴比妥酸和苯甲醛经Knoevenagel缩合反应,制备了5-亚苄基硫代巴比妥酸。
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The experimental results shows, if the ratio between MS-1 and OP-10 rangs from 1:1 to 3:l,and the total dosage of them is about 20% of Octamethylcyclotetrasiloxane (D4 ) in quality, we can obtain a kind of stable seeded emulsion of organic silicone modified acrylic ester emulsion. At the same time, if the ratio between MS-1 and Tetramethylammonium Chlorideis l:1.7,the total dosage is about 50% of D4 in quality; the ratio between MS-1 and Cetyltrimethylammonium Chlorineis 7:1, the total dosage is about 25% of D4 in quality,we can also obtain stable seeded emulsions. But if the complex emulsifier system is made of TMAC and OP-10, MS-1 and Peregal O or CTAC and Span-80, we can not synthesize any kind of satisfactory seeded emulsions.
实验结果表明:当MS-1与OP-10的质量比为1:1~3:1,总用量为八甲基环四硅氧烷(D_4)的20%左右时,可合成稳定性良好的硅丙种子乳液;MS-1与四甲基氯化铵的质量比为1:1.7,总用量为D_4的50%左右,MS-1与十六烷基三甲基氯化铵的质量比为7:1,总用量为D_4的25%左右时,亦能得到稳定的硅丙种子乳液;而TMAC与OP-10、MS-1与Peregal O以及CTAC与Span-80的复合体系作为乳化剂时均不能得到满意的硅丙种子乳液。
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When the teeth ratio of planetary gear is greater than 2 and transmission ratio is less than 1,the transmission will be speeded up from right to left.When the teeth ratio is less than 2,transmission will be slowed down from right to left,and when the teeth ratio is becoming close to 1,transmission ratio will trend towards infinity theorically.
当行星齿轮的齿数比大于2时,传动比小于1,传动自右到左为增速;当齿数比小于2时,传动自右到左为减速;当齿数比趋向1时,传动比理论上趋向无穷大。
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Following titman and wessels(1988), we do not use market to book to proxy for growth since it can be highly correlated with leverage when the latter variable is defined as the ratio of the book value of debt to the sum of the book value of debt and the market value of equity.
顺着titman 和wessels(1988)的思路,我们并不使用&市场账面比&来表示成长,是因为当&账面变量&被定义为债务的账面价值比上债务的账面值与净产值的市面值的比率时,&市场账面比&就很可能和杠杆作用相关联。
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The results showed that 22.5μL/L of clove leaf oil had the best preservation effect on peach. After 35 days of stock, the sound fruit rate was 94%, 46.9% higher than compared group. The rotten index and the browning index were 94.1% and 85.2% lower than the control, respectivly, and the treatment could remarkablely reduce the respiration rate and ethylene release, and postponed ethylene release peak and respiration peak 5 and 10d, respectively in comparison with CK, it also delayed the drop of firmness and contents of titrable acids of the peach. When stored for 35d, firmness of control group and 22.5μL/L of clove leaf oil were decreased 60% and 34% compared with initial storage, and the activities of SOD, CAT and POD were enhanced, but the contents of SSC had no obvious difference with control.
结果表明,与对照相比,22.5μL/L丁香叶油处理对桃果实的防腐保鲜效果最好,贮藏35d时好果率为94%,比对照提高了46.9%,腐烂指数和褐变指数分别比对照低94.1%和85.2%;丁香叶油处理可以有效降低桃果实的呼吸强度和乙烯释放量,呼吸强度高峰和乙烯释放量高峰分别推迟5和10d,延缓了果实硬度和可滴定酸含量下降的速度;贮藏35d时对照和22.5μL/L丁香叶油处理果实硬度分别比贮藏初期降低了60%和34%;丁香叶油处理提高了超氧化物歧化酶、过氧化氢酶、过氧化物酶3种膜脂过氧化物酶的活性,但可溶性固形物含量与对照相比无明显差异。
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The influence of thickness d of ZnO varistors on the residual voltage ratio K \-r has been experimentally studied.It is showed that K \-r also has dimensioned effect. The results show that there is a residual voltage ratio K \-r decreases propor tonally with E \- 1mA ,and increase μ as grain mean size.
实验研究了厚度d 对ZnO压敏电阻片残压比Kr 的影响规律,表明残压比同样存在几何效应;实验还表明残压比Kr 随电位梯度E1m A成反比例下降,随平均晶粒尺寸μ的增大而增大;找到了一个综合微观结构参数平均晶粒尺寸μ和晶粒尺寸方差σ2 的乘积(σ2μ),能较好地反映电性能与微观结构参数的关系。
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Shakespeare, traducing Richard III with the connivance of the first Queen Elizabeth, understood better than anyone that a good story is more compelling than the search for truth.
在伊丽莎白女王一世的默许下中伤理查德三世的莎士比亚比任何人都清楚,一个好故事比寻找真相更能打动人。
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After administration of L-N〓-nitro-Arginine, a specific antagonist of NOS, it was found that the basal and stimulated NO release of blood vessels (aorta, internal carotid, renal and mensenteric artery) was decreased further. The increase of coronary blood flow stimulated by Ach was also reduced further, while the platelet aggregation degree and erythrocyte aggregation index increased significantly. Pathological examination indicated that aortic endothelium was destroyed, the blood vessels in cerebral, cardiac and renal tissues were hypertrophied further and some were almost occluded. The above fin dings resulted in SHR feeded with L-NNA having high incidence of stroke rate and high degree of renal cirrhosis when compared to control SHR. The infarct and hemorrhagic focuci in cerebral tissues, infarct focuci in cardiac tissues, atrophy and hyalinedegeneration of renal glomeruli and degeneration even necrosis of renal tubuli in renal tissues were al so found. The increase ratio of brain and heart to body weight and decrease ratio of kidney to body wei ght further demonstrated that the cerebral, cardiac and renal injuries were aggravated.
在上述结果的基础上进一步给予SHR NOS特异性拮抗剂左旋亚硝基精氨酸后,血管(胸主、颈内、肾及肠系膜动脉)NO基础释放及激动剂刺激释放进一步减少,Ach刺激冠脉流量的增加和胸主动脉内膜NOS活性也进一步减少,血小板聚集程度及红细胞聚集指数显著上升,病理切片显示胸主动脉内皮细胞破坏明显,脑心肾组织内的血管进一步增厚甚至几乎阻塞,导致饲L-NNA的SHR缺血性及出血性脑卒中发生率显著高于对照SHR,脑体重比显著升高;心肌内出现明显的缺血梗塞疤痕灶,心体重比显著升高;肾小球明显萎缩、玻璃样变性,肾小管也变性甚至坏死,使肾硬化程度显著增加呈颗粒性固缩肾,肾体重比也显著减少。
- 推荐网络例句
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By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.
到它被攻陷的时候,里面多数的犯人是写了反对政府贪污文章的作家。
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The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.
在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色,卵在发育96h后卵基本全部孵化。
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There was a conflict between plebs and patricians in ancient Rome in 494BC.
在公元前494年,罗马发生了一次平民反对贵族的斗争。