改良

Methods: 2 hours of reversible focal ischemia in rats were produced by improved the method of Connolly' suture occlusion of MCA and the expression of SAMDC-mRNA in the cortex and subcortex was measured by RT-PCR after 2,4,8 and 24h reperfusion following 2h ischemia respectively.

在Connolly线栓法的基础上进行改良，复制大鼠MCA区2h脑缺血-再灌流2，4，8，24h动物模型，用逆转录多聚酶链反应测定缺血区皮质和皮质下组织不同时相SAMDC-mRNA的表达。

The improved subgrade-filling can be used for the subgrade engineering.

因此，对既有填料进行改良是有效的途径之一。

Subsoil acidity is one of the serious problems in crop production in the humid and subhumid tropics; therefore, the amelioration of acid soil profiles is an important practice for improving the yield and quality of crops.

在热带和亚热带地区，底土酸性常为限制深根性作物生长之因子之一，故强酸性土壤的剖面酸性之改良，为提升作物生育及品质的重要举措。

Methods The modified far lateral suboccipital approach was used in 10 patients with dumbbell neufinomas of the upper cervical spinal canal and the clinical data were retrospectively analysed.

对经改良枕下远外侧入路手术治疗的10例高颈段椎管哑铃形神经鞘瘤病人的临床资料进行回顾性分析。

In this theory, we firstly introduce the basic theory of discrete wavelet transform and lifting scheme. Secondly, we adopt a fully pipelining VLSI architecture for lifting-based DWT. Hence, we can operate on higher working frequency. Besides, we merge a QCB-based DWT method to achieve the higher parallelism for JPEG 2000 encoding system. By changing the output timing of the DWT process, the internal tile memory size can be reduced by a factor of 4. Moreover, the architecture can efficiently perform shape-adaptive DWT and solve boundary extension and subsampling problems. Finally, according to the comparison results with other architectures, the efficiency of proposed architecture is proven.

在这篇论文中，首先我们介绍离散小波转换和提升式架构的基本理论，接下来我们改良提升式架构采用全管线化的硬体架构，因此我们可以操作在较高的工作频率，并且我们合并了以四个编码方块为基础的方式来使得JPEG 2000编码系统具有更高的平行度，藉著改变离散小波转换的输出时序，内部的记体体需求可以减少为原本的四分之一，接著此架构也可以有效地支援可适应形状的离散小波转换，同时解决了边界延伸和子取样的问题，最后根据与其他架构比较的结果，来说明所提出之离散小波转换架构的贡献。

It is reliable method to construct subseries cell lines of bladder neoplasm strains with improved invasive experiment,and the subseries cell lines can be used as cell model for studies of bladder carcinoma′s invasiveness and metastasis.

运用改良的侵袭实验筛选膀胱癌细胞系的高侵袭力亚系的方法是可靠的，建立的高侵袭力亚系细胞为今后对膀胱癌侵袭及转移的研究提供了较为可靠的细胞模型。

Biotic reclamation of the saline and alkaline land means the direct planting of the salt- enduring plant in salinization land, in conventional irrigation, not to require any subsidiary condition and facilities,in which the soil salinity is retained beyond the root system zone in soil profile.

生物改良盐碱地，指利用耐盐植物直接种植，通过常规灌溉，不需要任何附加条件和设施，将土壤盐分控制在植物根系土层以下的土体中。

Relying substitution mode as a rule and reformed choice mode as a complement is not only a correct decision in China's relevant system construction,but also a implied proposition in current legislation and judicial interpretation.

以替代模式为原则并辅之以改良的选择模式是我国相关制度建设的正确思路，也是已有的法律规定和司法解释所隐含的主张。

Objective To evaluate the effect and safety of modified procedure of subtotal thyroidectomy.

目的 评价改良甲状腺大部分切除术的效果与安全性。

The improved PCR-based subtractive hybridization might be efficient for cloning of differentially expressed genes in target cells.

结论这种基于PCR技术的改良消减杂交方法对于差异表达基因的克隆是十分有效的。

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。