降低

Irradiation at dose lower than 2.0kGy have no significant effects on sensory qualities, content of crude protein and amino acid （p〉 0.05）, and decrease 2 - 3 log of microbial in the mixture blanched peanut and celery and above 6 log of pathogens of Listeria innocua and Salmonella enteritidis inoculated.

值分别为0.284和0.296kGy，2.0kGy以下的辐照剂量对其感官品质和蛋白质的营养品质没有明显的影响。2.0kGy剂量能使冷食菜中的微生物降低10^-2～10^-3，使接种于其中的致病菌降低10^-6以上，能有效地提高芹菜花生冷食菜的卫生安全。

Results (1) After the three modes of injury the quantity of mucosal sIgA and numbers of IgA secreting plasma cells in the intestine were all significantly decreased, enterogenous infection was increased, the IL-4mRNA expression of mesenteric lymphocytes was reduced, and the damage in the combined radiation-burngroup was more severe.

结果 ①三类伤组伤后均出现小肠粘液sIgA含量显著降低，浆细胞数量减少，肠道细菌移居增多，肠系膜淋巴结IL-4mRNA表达降低，尤以复合伤组最重。

Low temperature ordering of FePt thin films has been achieved by using a thin equiatomic AuCu underlayer.

提出并利用相干生长的多层膜中有序－无序转变过程的彼此关联作用，借助AuCu缓冲层的低温有序化，降低FePt薄膜的有序转变温度200℃以上，为FePt薄膜的低温有序化开劈了一条新途径；制备多层膜，退火形成有序相FePt纳米颗粒分散在Ag基体的复合结构，比FePt/Ag共溅射或合金多层膜方法的退火温度明显降低；通过缓冲层Ta控制FePt的粗糙度和晶界密度，同时界面附近Ta、Pt发生化学反应，两者共同促进薄膜内Pt原子的有效迁移，从而加速FePt有序化；进一步，在Ta和FePt之间插入Bi薄层，强化Ta、Pt的扩散，在更低温度下形成高矫顽力的有序化FePt薄膜且FePt晶粒之间交换作用大大减弱；发现MgO薄膜作底层，可控制与MgO晶粒尺寸大致相当的临界厚度以下的FePt有序化薄膜的（001）取向，同时，MgO和FePt的相对厚度显著影响（001）取向FePt的有序化。

The influences of Ce on the microstructure and mechanics performances of Ti-Fe-Mo-Mn-Nb-Zr alloys were studied and presented in this paper. The microstructure of no-Ce Ti-Fe-Mo-Mn-Nb-Zr alloy was thick, long and dendritic,and the microstructure of alloy was fined by Ce. With the increase in Ce wt%, the microstructure became equiaxial gradually.

研究了稀土 Ce对 Ti- Fe- Mo- Mn- Nb- Zr合金组织与力学性能影响，结果表明：不含 Ce的为粗大的长枝晶组织，加入 Ce后组织有所细化，并随 Ce量增加而逐渐等轴化，直至形成等轴晶；硬度方面随 Ce的加入有所降低；在 Ce含量较少时随 Ce的增加压缩强度也增加，但当 Ce含量增大一定量时，Ce增加降低了压缩强度。

The results showed that in the HDT 30th day, the orthostatic tolerance decreased significantly (P.01) in control group compared with pre-HDT, but in the limb muscular group and bicycle ergometric group, the orthostatic tolerance decreased insignificantly compared with pre-HDT.

结果发现：卧床第30 d，对照组的立位耐力较卧床前显著降低(P.01)，而下肢肌力训练组和自行车功量计训练组的立位耐力较卧床前有所降低，但未达到显著水平。

In order to cutting down the cost, flocculation of recombined Erwinia carotovora-Eccl3B cell from broth, influence of temperature, pH and oxidants on the separation of PHB were studied; and the method which measure the molecular weight of PHB by intrinsic viscosity was also studied; furthermore, a phenomenon was found that insolubility of PHB in chloroform can be changed by pretreated at over 120℃ for the fist time, and the mechanism of this phenomenon was explored.

为了降低成本，提高生产效率，本文针对发酵法生产PHB过程中存在的，发酵液难以分离沉淀，非有机溶剂提取PHB时分子量严重降低等问题，进行了发酵液的絮凝，及温度、pH、氧化剂对提取PHB影响的研究。并对粘度法测定PHB分子量的方法进行了研究，同时，对于研究过程中发现的，加热后PHB在三氯甲烷中的溶解性变化及其原因进行了探索。

High copper also can cause the decrease of ATPase activity and membrane fluidity. These revealed that high dose copper destroied function of erythrocytic membrane and cause haematolysis, which may be one of mechanisms of the toxic effect induced by high dose copper.

高铜使红细胞渗透脆性增加，在酸性甘油溶液中的溶血速度(AGLT50)升高，细胞膜ATPase活性降低和膜流动性降低，表明高铜能够破坏红细胞膜的功能，进而使得红细胞发生溶破，这可能是高铜对羊红细胞毒性作用的机制之一。

The methods to reduce the ethanal content in chips were expounded, such as reducing the reaction temperature, decreasing the final poly-condensation liquid level properly, stopping using the recovery EG and adding stabilizer.

介绍了低醛超有光聚酯切片的开发，阐述了降低切片中乙醛的质量分数的方法，即：降低反应温度，适当减少终缩聚反应的液位、停用回收EG、加稳定剂等。

BP can damage rats' spatial learning and memory, and which could be related to decreased contents of excitatory amino acids in hippocampus.

BP能使大鼠空间学习记忆能力降低，这可能与海马兴奋性氨基酸含量的降低有关。

A typical wheel optimization design was exploringly studied, and the results show that through the wheel structural optimization design, the weight of the wheel may be reduced further. The benefits are material saving and improving of the vehicles'driving quality. It has vital significance to reduce the cost of the wheel.

对某一类型车轮的优化设计进行了探索性的研究，研究结果表明，通过对车轮结构的优化设计，可以进一步降低车轮的重量，在保证车轮性能的前提下充分地节省材料并改善车辆行驶性能，对降低车轮制造的成本具有重要的意义。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。