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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。

A summary of CT signs of 20 cases of carcinoma of pancreas and 4 cases of cancer of Vater amp- ulla,all proved surgically and patho- logically,was presented,The overall CT diagnostic accuracy in this series was 95%.

总结手术、病理证实的20例胰腺癌和4例法特壶腹癌的 CT 表现。本组 CT 总的确诊率为95%。胰癌主要 CT 征象是腺体局部增大及轮廊改变、密度降低、双管征、胰周粘连淋巴结增大脂肪层受侵犯。壶腹癌主要特征是显著的胆道扩张,仅1例有胰头部癌浸润。

Catarium that is naturally decomposed outdoors has an inhibitive effect on cabbage seed germination. While the inhibition effect increases with increase in extract concentration, it, however, decreases with decomposition time. With regards to the length of cabbage root, 0.1 g·mL-l aquatic extract of E. catarium inhibits root growth at every decomposition stage. With the exception of undecomposed E. catarium , other concentration extracts during decomposition enhances root growth. Aquatic extract from E. catarium also enhances cabbage stem growth.

滤纸培养皿试验结果表明:假臭草植株提取液对小白菜种子发芽的抑制作用随浓度增大增大,且随植株分解时间的延长而逐渐减弱;就幼苗根长而言,不同分解时期0.1 g·mL-l的假臭草提取液对根长均表现为抑制作用,除未分解的假臭草以外,其他时期其他浓度的假臭草提取液对根系生长均有促进作用;假臭草提取液对小白菜茎长总体表现为促进作用。

It is found thatthere exist three modes in a magnetized, homogeneous, and collisional dusty plasma:the wholly damped mode due to the thermal diffusion, damped electrostatic dustacoustic wave, and damped electrostatic dust cyclotron wavediscovered by the dissertation for the first time; As neutral gas pressure increases,the damping rates of the EDA and EDC waves increase; The effects of dust densityon the EDA and EDC waves are remarkably different from unmagnetized orcollisionless plasma; A possible explanation to plasma crystallization is suggestedon the basis of the present results.

EDA的阻尼速度随中性气体压强的增大增大,这一点与实验相符,对于EDC也存在同样的关系。尘粒密度对EDA波和EDC波的影响明显不同于非磁化或者无碰撞尘埃等离子体中的情况。当忽略碰撞时,阻尼的EDA和EDC波回到纯振荡波。最后就尘埃等离子体晶化给出了一个可能的解释。

The experiment results show that the highest unoiling rate s of SW-1 are 85 6% and 80 4% for 15 # lubricating oil and petroleum respectively, and the unoiling rate increases at first and then decreases with further addition of this reagent.

实验结果表明:SW - 1对 15 #机械润滑油和原油的最高除油率分别为 85 6 %和 80 4 %,且除油率是随着加药量的增大而先增大后减小;在 2 0 0~ 2 0 0 0mg/L的质量浓度范围内,除油率随着油介质浓度的增加而降低;同时SW - 1对循环水系统中的缓蚀剂的缓蚀效果没有明显影响。

The catalyst samples were characterized by XPS and the catalytic performance of the catalyst for synthesis of lower alcohols was investigated. The XPS results indicated that the molybdenum exists as Mo6+ and (Mo6++Mo4+) in the unreduced and reduced catalyst, respectively, while the cobalt exists as Co2+ in both unreduced and reduced catalyst.

结果表明,在氧化态超细Mo-Co-K催化剂中,钼和钴分别以Mo6+和Co2+物种存在,催化剂中各物种之间存在着相互作用;随着Co/Mo比的增大,还原态催化剂中Mo4+物种的含量逐渐增大并出现极大值;催化剂上合成低碳醇反应性能与其表面的Mo4+物种有关。

The relationship of slope and upslope drainage area of the study area is S = 0.074 A-0.1895, and the gully initiation process is an interaction process of hydrological erosion, melt erosion and landslide erosion, the initiation threshold is increased by the biomass.

研究所得的切沟发育临界地形条件为S = 0.074 A-0.1895,研究区切沟发育的过程是受水力侵蚀、冻融侵蚀和重力侵蚀的交互影响的过程,而沟头植被覆盖的增大会导致切沟发育临界条件的增大

When vaccinal ratio is greater than zero, the critical infection value becomes greater with the time increasing.

当接种比例大于零时,传染率需要跨越更大的传染临界值疾病才能流行,且随着时间的增大传染临界值也增大

The devices of sandwiched structure were prepared by compounding poly[2-methoxy-5-(2-ethyl-hexyloxy)-l,4-phenylene vinylene] with SiO_2. The thickness of MEH-PPV of these devices are different. We found the suitable frequency of drive voltage to obtain the greatest brightness. The device of cascade structure was prepared based on this work.

采用共轭高分子聚2-甲氧基-5-(2′-乙基-己氧基)-1,4-亚苯基亚乙烯基与SiO_2制成夹层结构器件,研究了不同发光层厚度的器件的发光特性,发现长波峰的发光强度随驱动电压频率的增大而增强、短波峰的发光强度随驱动电压频率的增大而减弱,进一步分析了其机理。

The resistance factor of gas and liquid commingled injection grows with the injection rates rising while that of gas and liquid alternative injection wavily rises with the injection rates rising,however both the methods ca.

封堵调剖实验表明,泡沫复合驱具有优良的封堵调剖能力,其封堵能力随渗透率增加而增大;气液共注时,阻力因子随注入量增加而持续增大,交替式注入时,阻力因子随注入量的增加波动上升,但随着注入量不断增加,两种方式均能产生较好的封堵效果;低气液比交替注入时,封堵作用表现缓慢;大段塞交替注入时,封堵效果相对较弱。

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但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

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Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。