近年

Flaveria bidentis,a potential exotic invasive weed to agro-ecosystem and rangeland ecosystem,has recently invaded Tianjin City and Hebei Provincein North China,and is spreading further.

菊科黄菊属植物黄顶菊近年出现在我国华北地区天津市和河北省的衡水、廊坊等地，其入侵范围有不断扩大的趋势。黄顶菊是一种入侵性极高的一年生杂草，对农牧业生态系统有极大的破坏性。

Results:The rate of gastrectomy grew from 50.0％ in 1960′ s to 86.4％ to date.

结果：胃癌手术切除率由60年代的50.6％上升到近年的86.4％。

The epidemiological survey shows that its incidence rate has been rising these recent years.Endometriosis has become one of the common gynecopathy.

流行病学调查显示，其发病率近年呈上升趋势，已成为妇科的常见病。

Although many G proteins including heteromeric and monomeric G proteins, they were cloned from various plants previously, the functions of most of them are not clear to date.

近年，从植物中克隆到百余种小G蛋白，研究了它们的结构。但是除少数几种以外，大多数还未涉及其功能的研究。

Using 60% high concentrated Sb2O5/H2O colloid as a raw material, a method for preparation of flame retardant Sb2O5 hexamethylene ketone colloid was studied.

胶态Sb2O5是锑深加工产品，具有优良的阻燃性能，是锑系阻燃剂中最好的一个品种，也是近年来日、美系阻燃剂中发展较快的一个品种[1～2]。

Cloud point extraction is related to the conventional liquid-liquid extraction. CPE based on the solubility and cloud point phenomenon of aqueous solutions of surfactants, upon alteration of the experimental conditions such as pH value of solution, ionic strength, temperature, and the solution is separated into phases, which results in the separation of hydrophobe and hydrophile.

浊点萃取(Cloud-Point Extraction， CPE)是近年出现的一种新兴的液-液萃取技术，它以表面活性剂胶束水溶液的溶解性和浊点现象为基础，通过改变实验参数，如溶液的pH值、离子强度、温度等引发相分离，从而将疏水性物质与亲水性物质分离。

So NC machine tools manufacture industry is facing new opportunity and challenge after the recent year's rapid incensement of performance.

进入2l世纪，我国制造业正处于由制造大国向制造强国迈进的历史时期，机床制造业在近年取得数控机床快速增长业绩下也面临着新的机遇与挑战。

OBJECTIVE: To summarize the application of polypropylene repair material in treating inguinal hernia.

目的：总结近年聚丙烯材料在腹股沟疝治疗中的应用现状。

Recently, based on the field work we have recognized that those basic rocks actually were oceanic basalts intergrown with Late Paleozoic deep water deposits, rather than continental rift basalts.

根据近年的野外工作，我们已经指出这些基性岩实际上是与晚古生代深水沉积共生的海相玄武岩，而不是象过去认为的大陆裂谷型玄武岩。

Objective:To investigate the objective index of traditional Chinese medicine typing by means of analysis bilateral renal interlobar artery blood velocity in diabetic nephropathy patient using colorful Doppler frequency spectrum. Methods:Thirty-seven diabetic nephropathy patients were divided into two group deficiency of both Qi and Yin .deficiency of both Gan, Shen and Yin.

糖尿病肾病是糖尿病常见的微血管并发症，严重者除大量蛋白尿外，最终将发展为慢性肾功能衰竭，近年通过早期中西医结合治疗，使其总体病情发生及发展得到了一定控制，但该病中医辨症分型尚缺乏客观指标。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。