延长时间

SDS-PAGE results showed that as to Mut+ recombinant highest yield was obtained after 4 days inducing and with the culturetime prolonged it reduced. Pokeweed antiviral protein gene expressed well when methanol concentration reached 10g/L. Pokeweed antiviral protein obtained high yield in thin acidic culture medium (pH6.0-6.4) and its quantity in total mass of secrete protein exceeded 30%.

SDS-PAGE分析结果表明，Mut~+组菌株在甲醇诱导第四天后PAP在培养液中积累量达到最高水平，延长培养时间会导致产量下降；在10g/L的甲醇浓度诱导下，PAP的表达量达到最高；培养基pH值在偏酸性条件下(6.0-6.4)PAP的表达量都维持在较高的水平。

The SOD activity decreased and MDA concentration increased significantly （P〈 0.05 ） with prolonged exposure and increased concentration of ponceau 4R, that was fitted with a time-dose-response relationship.

随着胭脂红染毒时间的延长和染毒浓度的增加，雌雄果蝇体内SOD活力明显下降、MDA含量明显升高（P〈0.05），呈剂量-反应关系。

With the extension of injury, the number of positive cells and the scope of expression gradually expanded.

随着损伤时间的延长，ApoE和S100阳性细胞数目及阳性表达范围逐渐扩大。

The results showed that the most important factors related to the accuracy were the recrystallized potassium persulfate and the sodium hydroxide.

通过试验发现，过硫酸钾、氢氧化钠的纯度是影响测定准确性的最重要因素，其中分析纯AR级的过硫酸钾(K2S2O8)经纯化处理可以降低空白值；消解时间的延长和消解温度增加对提高实验准确性的影响不显著。

The contents of chlorophyll and soluble protein decreased continuously in both CMS and their maintainer; while the contents of soluble sugar, praline and the activities of three protective enzymes at first increased, then decreased under cold-stress.

随着低温处理时间的延长，不育系和保持系叶绿素和可溶性蛋白质含量一直下降，可溶性糖和脯氨酸含量呈现先上升后下降的趋势；SOD、POD和CAT活性呈现先上升后下降的趋势。

So that at end of 20th century, the natural environment accumulated too much unconscionable results. Every kind of calamity happened frequently: bad-balanced precipitin, soil lapse, prolonged drought time, soil aggravation, life species decreased quickly, etc.

以至于在20世纪末，自然环境由于积累了太多的不合理开发的后果，各种灾害频频发生；降水不均、水土流失、泥石流、伏旱时间延长、土质恶化、生物物种骤减等等。

Through comparative Analysis on simulator tests, precautions for verification tests of the calibration pressure of main steam safety valve are presented, increasing the levels of steam generators and pressurizer can prolong the SI actuation time greatly.

通过模拟机试验比较分析，提出热停堆状态下进行主蒸汽安全阀定值校验的安全措施，在校验试验前提高蒸汽发生器和稳压器的水位可以大大延长发生安全注入动作的时间。

Result: 1、Ethology result:50 rats were injecting convulsive dose kainic acid, showing prodrome such as gaze, wet dog shake in the 0-30 minutes; 1-5 degree epileptic attack in the 30-60minutes; 4-5 degree repteately spontaneous epileptic attack in 60-90 minutes; then status epilepticus,SE-epileptic attack endurance became longer and interval became shorter with bulk salivas and various kinds psychomotor symptoms.

结果：1、行为学结果：SD大鼠(n=50)在注射惊厥剂量(10mg/kg)KA后，0-30min内动物出现凝视，湿狗样抖动(wet dog shake，WDS)等前驱症状；30-60min内动物出现1-5级癫痫发作；60-90min内动物反复自发出现4-5级癫痫发作；其后动物癫痫发作持续时间延长，间隔变短伴有大量唾液分泌，出现各种精神运动症状，呈现SE，SE后10天，用阈下剂量(5mg/kg)KA检测动物对癫痫刺激的敏感性。

Results: Caspase-3 mRNA was constitutively expressed at a low level in freshlyisolated CD34+ cells. The expression of caspase-3 mRNA and protein was upregulated when these cellswere first expanded in suspension culture with growth factors for 3 days. However, only the 32 kDa inactivecaspase-3 proenzyme was detected in the freshly isolated CD34+ cells as well as during the first 3 daysexpansion with cytokines.

检测结果显示，Caspase-3mRNA在新鲜分离的脐血CD34+细胞中低水平表达，在细胞因子支持下体外培养3天，扩增的CD34+细胞中Caspase-3mRNA和蛋白质水平表达上调，但在这两种细胞中仅能检测到分子量为32KDa的非活性酶原形式的Caspase-3；随着体外培养时间的延长，在IL-3，IL-6和GM-CSF组合条件下，Caspase-3被激活，可检测到分子量为20KDa的裂解片段。

High intensity focused ultrasound is an effective method to prolong the life of patients with liver cancer.

高强度聚焦超声治疗是延长肝癌患者的生存时间的一种有效方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。