国外工程投标报价探讨

来源 :广东建设信息 | 被引量 : 0次 | 上传用户:seacowp
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
其他文献
Biodegradable chitosan-g-poly (D, L-lactic acid) copolymers were prepared via two methods. (1) The lactide was grafted onto hydroxyl groups of chitosan by using
本文简要论述了辽数发射机阻抗不匹配引起的干扰现象及解决方法,供参考。
Platinum nanoparticles supported on graphite nanofibers (GNFs) were prepared by microwave assistant heating polyol process. TEM images showed that microwave pre
The recognition interaction of rhodamine B (RB) with DNA was studied in pH 7.5Britton-Robinson (B-R) buffer solution by electrochemical techniques. An irreversi
<正>烙画亦称烫画、火笔画,是一种历史悠久的汉族工艺美术品。它是用温度在摄氏300至800的铁钎代笔,利用碳化原理,在竹木、丝娟、宣纸等材料上作画。起源于中国历史文化名城
世界银行《发展中国家众筹发展潜力报告》显示,众筹模式已在全球45个国家成为数十亿美元的产业。预计到2025年,发展中国家规模将达960亿美元.其中500亿美元在中国。面对如此庞大
The synthesis of (S)-2-(3-arylacrylamido)-3-{4-[2-(5-methyl-2-phenyloxazol-4-yl)ethoxy]phenyl}propanoic acids is described. Their structures were confirmed by H
Dipyrromethanes were obtained in moderate yields by the condensation of ketone and pyrrole in the presence of ionic liquid [Hmim]BF4 without using any strong ac
Two new compounds, namely 7α, 10α-dimethyl-3β-isopropene-1, 2-ene-octahydronaphthalene (1) and ethyl 5Z,8Z, 11Z, 14Z-nonadecatetraenoate (2) were isolated fr
探讨对肺真菌病的X线和CT诊断。材料和方法:对43例肺真菌病的X线和CT表现进行回顾性分析。结果:66%病例累及2个肺叶上,双下叶受累最常见。