Poly (N-vinylpyrrolidone) with carboxylic end groups and amino end groups (PNVP-NH2) were prepared by the chain transfer reaction in free radical polymerization.
利用普通自由基聚合中的链转移反应，分别制备了以羧基为端基的聚和以胺基为端基的聚(PNVP - NH2)。
To explore the role of the bridged N atom for a possible proton transfer in the active site of hydrogenase, we tried to introduce a hydrogen bond into a couple of designed molecules.
为研究氢化酶活性中心氮桥结构中氮原子是否起到质子摆渡的作用，设计了在分子内引入氢键的结构。
The photoinduced electron transfer reaction between N-tosyl amides and 2-phenyl-N, N'-dimethyl benzimidazoline (PDMBI) provides an efficient approach for the deprotection of N-tosyl amides.
对甲苯磺酰基酰胺和2-苯基-N，N'-二甲基苯并咪唑啉（PDMBI）之间的光诱导电子转移反应，为酰胺的保护基——对甲苯磺酰基的脱除反应，提供了一条有效途径。
Study on transfer and transformation of NH3-N from leachate in soil and groundwater was carried out by simulated experiment, influence extent and law of leachate pollution on soil were achieved.
通过模拟实验对渗滤液中的氨氮在土壤和地下水中的迁移转化进行了研究，从而得出渗滤液对土壤的影响程度和规律。
The electron- ics of the C atom and the N atom on the coal surface amino transfer to oxygen atom in the oxygen molecule.
煤表面氨基上的C原子和N原子的电子向氧分子中的氧原子转移。
Note the form of the contemporary transfer order known as a check:"I, Murray N. Rothbard, direct the Bank of America to pay to the account of Service Merchandise 100 dollars."
转帐用今天的话来讲就是：“我，穆瑞·罗斯巴德，通过美国银行向某商人的帐户支付100美元。”
Teams: as far as possible, you should work in teams of two unless you are doing the M-to-N fast file transfer protocol project.
团队：你应该尽可能与至少两位的小组成员一起合作，除非你做的专题是M到N快速档案传送通讯协定。
Assuming the transfer delay to be ignored, the networked control system is an asynchronous dynamic system with N-events.
假定传输时延可以忽略，则整个网络控制系统可以描述为一个具有N个事件的异步动态系统。
The zero transfer point can be set arbitrarily by appropriately selecting transmitting periodic time T and number N, and it is advantageous to eliminate some interference in some frequency points.
适当选择发射周期T和周期数N就可以随意设置梳状滤波器的零传输点，有利于消除某些频率的干扰；
As far as possible, you should work in teams of two unless you are doing the M-to-N fast file transfer protocol project.
你应该尽可能与至少两位的小组成员一起合作，除非你做的专题是M到N快速档案广播通讯协议。
Their phase transfer catalytic ability for the reaction of N-alkylation, O-alkylation and oxidation were also determined.
测定了其对氧烷基化反应、氮烷基化反应的相转移催化作用。
The discrete ordinate method and the control volume method are employed to solve the radiative transfer equation and the energy equation combined with the N-S equation.
采用离散坐标法、控制容积法耦合求解辐射传递方程、能量方程及N - S方程。
The solvent effect on the photoinduced charge transfer between n, N-dimethylaniline and quinone has been investigated.
研究了N,n二甲基苯胺和苯醌间光诱导电荷转移的溶剂效应。
The effect on circumgyration of carbon grain and the ablation of nose-tip during re-entry of stratagem missile is analyzed according to thermal transfer theory, thermo-aerodynamics and N-S equation.
根据气动热力学、传热传质学、N - S方程，分析了战略导弹再入时端头帽烧蚀与碳颗粒的旋转效应，研究结果表明碳颗粒的旋转有利于防热。
The chitosan was prepared with 92% deacetylation degree using n-butanol and sodium hydroxide as a reaction medium and cetyltrimethylammonium bromide as a phase transfer catalyst.
采用正丁醇-氢氧化钠反应体系，以十六烷基三甲基溴化铵为相转移催化剂，制得脱乙酰度为92%的壳聚糖。
This indicates that N-methyl pyrrolidone is superior to naphthalene in comprehensive heat transfer performance and is suitable to be used in moderate-temperature heat pipe.
实验表明N—甲基吡咯烷酮综合传热性能优于萘，可望作为中温热管工质使用。
Heat transfer of nucleate boiling of water and n-hexane in a vertical cylindrical annulus with inner side heated has been experimentally investigated.
以水和正己烷作为介质，考察了通入空气对内管加热的竖直圆柱形环隙内的沸腾传热性能的影响。
The bond characteristics and charge transfer in the V-N-vacancy complex are analyzed.
分析了V - N -空位复合体的成键特性和电荷转移情况。
According to the engineering exergy transfer theory, the exergy transfer model for 1-n type heat exchanging chain is constructed and the corresponding evaluating criterions are established.
依据工程传递原理建立1 -N型热交换链的传递模型，并确立相应的评价准则。
The typical model of output queueing in ATM switching has ideal performance, but is difficult to realize because of the need of high speed transfer that is N times the port speed.
典型的ATM输出缓冲交换结构有着理想的性能，但需要N倍端口速率的高速传送而难以实现。
Poly (N-vinyl carbazole) was modified to prepare azo-PVK by post-azo-coupling reaction with diazo salt as raw material using phase-transfer catalysts.
我们以聚乙烯咔唑为偶合组分，和发色基团对硝基苯重氮盐在相转移催化剂存在下，采用后重氮偶合方法，制备出偶氮化聚乙烯咔唑。
By analyzing different connection modes for load transfer, a model of the maximum load capability based on N-1 principle is given.
在线路满足N - 1原则的前提下，着重考虑主变n - 1原则下所能提供的最大负荷，给出了城市中压配电网最大供电能力的数学模型。
The experimental results show that QSDC only needs to transfer(N-1) qubits during transmitting N bits classical information;
实验结果表明：量子密集编码只需传送N-1个量子位便可以传递N个经典位的信息。
Thus, tuning can be accomplished via a 2-byte serial transfer to the 16-bit N register.
因此通过16比特N寄存器的2字节串行转换，调谐就可以实现。
At the same time, the frequent n&r transfer generate huge force to the electric motor itself and tends to break the motor's cast-iron frame.
同时电机频繁正反转对电机本身也产生巨大冲击，容易造成铸铁电机罩壳破碎。
Synthesis of N, N-Diethylaminoethyl 3,4-Dichlorobenzyl Ether by Phase Transfer Catalysis.
相转移催化合成N，N-二乙基氨基乙基-3，4-二氯苄基醚。
This Recommendation specifies the DSS 1 signalling requirement on the N-ISDN user-network interface for the Explicit Call Transfer (ECT) supplementary service.
本建议规定了在N - ISDN用户-网络接口上用于明确呼叫转移(ECT)补充业务的DSS1信令要求。
This Recommendation specifies the DSS 1 signalling requirement on the N-ISDN user-network interface for the Explicit Call Transfer (ECT) supplementary service.
本建议规定了在N - ISDN用户-网络接口上用于明确呼叫转移(ECT)补充业务的DSS1信令要求。
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