查询词典 ir

n thes paper, the oligomers with different molecular weight of monohydroxylpolyethersulfones were synthesized in solution and the optimum condition ofpolymerization was obtained; With phase transfer catalyst method,the oligomerswas obtained and transformed to monovinylpolyethersulfones macromer. Its structure was characterized with IR and 1H-NMR.

本文采用溶液法以单酚（4－氯－4'－羟基二苯砜）为原料合成了不同聚合度的单酚低聚体，得到了控制聚合度的最佳聚合条件；用相转移催化剂法成功地将单酚转化为单烯大分子单体，并用IR、1H—NMR对其结构进行了表征；测定了双键官能度均在1.90以上。

Once US President signs the bill, it will strengthen monitoring corporate accouters, impose severer penalties to enterprises' chief executives for the ir illegal operations and requires that senior corporate staff must take responsibility for earning repor

一旦美国总统布希签署，这项法案将加强监检企业的会计人员、对企业执行长的不法行为加重量刑，并要求企业高层人员必须对财务报表负更大责任。

The product was characterized by IR and elemental analysis and assayed by HPLC.

通过元素分析、IR对其结构进行表征，并用HPLC测定其含量。

Group IR(n=10): Dissociating hilum of left lung and blockading it for forty-five minutes,and then opening hilum of left lung .Two hours and five later, samples were got.

IR组，对照组(n=10)，开胸后首先进行左肺门结构的常规游离，接着阻断肺门45分钟，开放后不做其他处理，2小时5分钟后留取肺组织。

The products have been charactered by XRD, FT-IR, Atomic absorption and electrochemical analysis etc.

通过XRD、FT-IR、原子吸收、电化学等手段分别对样品的组成、结构、粒径进行了表征。

The structure and thermal behavior of nanocomposites were charactered by IR,TEM, XRD and TGA.

通过红外、透射电子显微镜及X射线衍射仪表征了复合材料的结构：通过热失重分析仪表征了纳米复合材料的热性能；并测试了无机纳米粒子以及纳米复合粒子在有机溶剂中的分散稳定性；并采用粒度分析仪测试了复合乳液的粒度大小及其分布。

C NMR, IR, GC MS and TG combined with some techniques including solvent extraction method, TPO and structure characterization were applied to determine the components of the deposit on the coked β zeolite catalyst after reaction for 8?000 h in pilot plant scale. It was shown that the composition of the deposit ...

用13CNMR ，IR ，GC MS ，TG等手段，并结合溶剂萃取法、TPO和结构分析等方法，确定了改性β沸石催化剂上沉积物的主要成分是多异丙基苯和四氢化萘，且主要分布在沸石孔道内；同时，快速升温后恒温烧炭的效果优于慢速升温后恒温烧炭的效果

The FT-IR results reveal that soybean oil and styrene were copolymerized.

主要工作如下： 1、本研究将豆油与苯乙烯进行自由基悬浮聚合。

The instruction in the IR is then decoded and executed.

有时某个指令的执行会改变PC的内容。

This paper is an attempt to make use of IR radiation characteristics for solving the recognition of targets and decoys.

因此，可以利用的只有目标和诱饵的辐射特征，这些辐射特征包括多个频段的辐射信息。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。