可增大的

The results indicate that back electromotive force increases with increasing current density and decreases by 0.5 V after adding 2% Li2CO3, the feeding period is 15 min measured by the method of electric potential control. Finally, the Al-Li alloy with the lithium content of 7.93% can be obtained by electrolyzing for 3 h at the current density of 0.62 A/cm^2 and at 680 ℃, and the current efficiency can reach 74.1%.

结果表明，反电动势随电流密度增加而增大，加入2%的Li2CO3可使反电动势降低0.5V；通过控制电位法测得加料周期为15 min：在680℃、电流密度为0.62A/平方公分的条件下持续电解3h，最终制得了理含量高达7.93%的铝锉合金，电流效率可达74.1%。

Excel in line of force can maintain goods seam place is firm and close together, can bear the hot action of 200 ℃, be able to bear or endure saline be soiled is eroded, do not shrink bouncy, in damp environment, yarn diameter increases 24 ～ 28 ％, those who assured the pinhole inside the shoe is close-grained, of puissant yarn wet expansile more appropriate than filament at tailor shoe kind goods.

高强力线可保持制品缝接处牢固紧密，可承受200℃的热作用，耐盐渍侵蚀、不缩有弹性，在潮湿环境中，纱线直径增大24～28％，保证了鞋内针孔的密实，强力纱线的湿膨胀性比长丝更适宜于缝制鞋类制品。

Coal-bearing seams in Shenyu mine area inclines northwest, the bedrock thickness on the coal seams increases northwest, and there are generally red soil water-resisting layer on the bedrock. To study on the coal-water friendly geological conditions for the water-resisting layer during the coal mining process, and to determine mining zones without causing obvious water table decline are an important approach to the water-conserving mining in the fragile ecological mine area of North Shaanxi.

榆神矿区含煤地层整体向北西倾斜，煤层上覆基岩厚度向北西方向增大，基岩之上普遍分布有红土隔水层，深入研究煤炭开采过程中不对含水层造成破坏的煤水共生地质条件，确定既可采煤、又可实现水位不明显下降的区域，是陕北生态脆弱矿区保水开采的重要途径。

The biological activities of ScFv obtained from 293T cell culture fluids infected by liposome were evaluated. RESULTS: The accession number of VH and VL genes of antiricin neutralizing monoclonal antibody was DQ389248 and DQ389245. ScFv could bind with ricin specifically. Inhibition percentage of culture liquid of 293T cell without dilution and with 2 times dilution was 33.7% and 29%, respectively. ScFv could neutralize the cytotoxic effects of ricin to SP2/0 cells at the concentration of 0.01-0.005 ng/mL in a nice doseeffect relation.

结果： 中和性单抗杂交瘤细胞4C13轻、重链可变区基因在GenBank中的登录号为DQ389248和DQ389245，ScFv与ricin可特异性结合，培养上清原液和2倍稀释液的抑制率分别为33.7%和29%；ScFv在ricin浓度为0.01~0.005 ng/mL时可中和ricin 对SP2/0细胞的细胞毒，随着ricin浓度逐渐增大，细胞存活率逐渐减低。

The results showed that there was a linear relation between the density and mass retention of bamboo,the mass retention of bamboo reduced while its dentisy increased,but the natural lasting time and the density of bamboo is disrelated with each other,the natural lasting times of eleven bamboo species were less than two years.

对车筒竹等11种竹材进行了防腐可处理试验和天然耐腐试验，结果表明：11种竹材的防腐可处理性能与其密度呈良好的线性相关，随着密度的增大，其质量载药量随之减少。

The components of the catalyst are sulfurated more completely with a longer reaction time. But the catalyst congregates into a large volume ball with a low BET surface area after a certain reaction. So the best range of reaction time is from 60 to 90 minutes.

研究发现，虽然硫化时间的延长可提高催化剂中金属组分的硫化物含量，但超过一定反应时间可导致硫化物过度结晶聚集，颗粒度增大，比表面下降，较佳的反应时间为60～90 min。

The properties of the plating bath and the coating quality are investigated based on hull-trough test and electrochemical tests.The results show that the stability of electrolytic solution is increased,with addition of(NH_4)_3C_6H_5O_7 and the current efficiency ranges of the cathode are extended greatly to 0.11～1.54A/dm~2.Further,the current efficiency...

结果表明：柠檬酸铵的加入可提高镀液稳定性，增大阴极极化作用，可使阴极电流密度范围扩宽到0.11~1.54A/dm2，阴极电流效率高达95.6%，所得镀层细致、均匀、结合力好，为取代氰化镀铜提供了新思路。

The results showed that the sandy soil in layered soil profile can stimulate or obstacle the water movement as compared to the uniform loam column with 50cm depth of water table, this was mainly determined by the position of the sand layer.

结果表明，砂层对于水分的蒸发既有促进也有抑制作用，在地下水埋深为50 cm时，5 cm厚的底砂层可使水分的蒸发强度增加10%～20%；砂层距水位的距离大于5 cm时，砂层可抑制水分的蒸发，且当距离增加到35 cm左右，其抑制率可达70%～80%；当砂层距水位的距离继续增大时，水分的蒸发强度基本保持不变。

During the first stage of the thermodegradation in nitrogen, the thermal stability of EVA /clay nanocomposites decreases din to the decomposition of octadecyl ammonium and a catalytic effect of acidic sits on the clay lavers deriving from the decomposition.

实验结果表明，通过离子交换反应，可使长链十八胺阳离子嵌入粘土片层间，增大了粘土的片层间距；对于EVA/有机化粘土体系，通过熔体插层可使EVA分子链插层于粘土片层中，使粘土片层被进一步撑开；EVA/粘土纳米复合材料具有较好的力学性能。

In order to produce lightweight cashmere and wool products of fashion with low cost and high added-value,a appropriate mixing ratio of water-soluble PVA fiber,cashmere and high-counts wool is selected,oil pick-up and moisture of blended top wool are strictly controlled,yarn twist and weaving tightness are carefully designed,and the vinylon dissolution process is optimized.

结果表明：水溶性PVA纤维所占混纺比例越高，可纺纱线密度就越低，但其所占比例过高则会造成坯布紧度及织造难度增大，退维后织物中纱线条干均匀度差，织物结构松烂；水溶性PVA纤维所占比例过小，则不易混合均匀，可纺纱线密度降低得少，达不到轻薄产品的要求。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。