查询词典 resin

Poly（p-vinylbenzyl succinimide） resin,which can be abbreviated to succinimide resin,was prepared by the reaction of chloromethylated polystyrene with succinimide in the presence of base. The succinimide resin was characterized by diffuse reflectance infrared Fourier transform spectrometry and elemental analysis.

摘 要：在碱性条件下，氯甲基化聚苯乙烯与丁二酰亚胺反应合成了聚（对乙烯基苄基丁二酰亚胺）树脂，采用元素分析、红外光谱对合成树脂的组成进行了表征。

Adhesive has environmentally-friendly products are mainly urea-formaldehyde resin, melamine urea-formaldehyde resin and modified phenolic resin; concrete water reducer products are mainly water-reducing agent has Sulphamate, polycarboxylate water reducer and superplasticizer melamine.

胶粘剂产品主要有环保型脲醛树脂、三聚氰胺改性脲醛树脂和酚醛树脂；混凝土减水剂产品主要有氨基磺酸盐减水剂、聚羧酸减水剂和三聚氰胺减水剂。

Totally, seven dihydroabietic-type resin acids,five dihydropimaric\isopimaric-type resin acids and three tetrahydro resin acids were identified in the tracking analysis.

在整个跟踪分析过程中，共检出7种二氢枞酸型树脂酸、5种二氢海松酸\异海松酸型树脂酸及3种四氢树脂酸。

In this paper, the governing equations of resin flow are presented on the base of the seepage mechanics, the thermodynamics and the chemical kinetics. The unlumped temperature system (i. e. thermal non-equilibrium locally) is used to describe the thermal behavior in the RTM process, the resin reaction and heat transfer among resin, mold walls, and fibers are considered in the model.

本文针对RTM工艺树脂润湿增强纤维特点，在渗流力学、热力学和化学动力学等基础上，建立了树脂流动控制方程，采用非局部热平衡法描述了树脂、纤维和模具之间的热传递现象。

The mixture of amino resin and acrylic resin has been selected based on the comparison of the charring layer characteristics from different resin systems.

通过比较不同树脂体系形成炭化层的优劣，确定选用氨基树脂和丙烯酸树脂共混体系作防火涂料的基料。

Through a variety of resin filter, adsorption and elution conditions for the optimization, as well as decolorization, crystallization methods of research, this article eventually determine the strong acid cation resin HZ-001 which is at pH 3, 3BV / h, having the largest adsorption to the tryptophan; the fermentation broth were centrifuged to remove sediment,then treated with activated carbon to be decolored and then treated with strong acid cation resin HZ-001. After that,2mol/l amino acid were passed through the HZ-001 ion exchanging column,kept almost constants when the flow rate stayed 6 BV / h. At 60℃,it was condensed into the saturated state and then added Ethanol until its percentage reaching 30%. At 4 ℃ under 100rpm placed in the shaker 20h, the collection of L-tryptophan was dried up in vacuo.

本文通过对种树脂的筛选、吸附和洗脱条件的优化，以及对脱色、结晶方法的研究与摸索，最终确定强酸型阳离子树脂HZ-001在pH=3，3倍床体积流速，温度室温，对色氨酸有最大的吸附作用；将发酵液离心去沉淀并用活性炭脱色后通过HZ-001强酸型阳离子交换树脂柱，再用2mol/L的氨水6倍床体积流速在室温下进行洗脱，收集洗脱液，60℃浓缩为过饱和状态后加入30%无水乙醇，4℃下100rpm摇起晶20h，过滤搜集结晶并真空干燥得白色粉片状L-色氨酸晶体。

The types,structures of substrates and reaction mediums for the enzymatic synthetic polyphenol resin was surveyed and the manufacturing method,product structure and their performances of the polyphonel resin and aldehyde resin were compared.

概述了酶催化合成聚酚树脂用酶的种类、底物的结构、反应介质；比较了该树脂和传统酚醛树脂的生产、结构及性能特点；指出了其不仅具有良好的耐热性能，可作传统酚醛树脂的替代品，而且具有导电、发光等功能，在光电材料方面显示了极强的应用潜力，但降低HRP催化合成聚酚树脂的成本是其实现工业化亟待解决的问题。

You go and find out if those trees are oozing yellow resin. Use a knife and try to find out if the resin is yellow. If it is yellow, that is the material that you are looking for. You do not want it if it is white like milk. We need the yellow one. It is like amber which is made of tree resin.

很简单，你到坟场去，看到有些在坟场的树木，你看那些树有没有流出黄色的树脂，你用刀给它弄一点看是不是黄色的，是就好啦，是白色像牛奶的就不要，要黄色的。

A kind of super-thin fire proofing coating for steel structure is prepared,with the mixture of amino resin and acrylic resin as base resin,ammonium polyphosphate、melamine、pentaerythritol as fire retardant system,TiO_2 and SiO_2 as pigment and filling.

选用氨基树脂和丙烯酸树脂混合体系为基料，聚磷酸铵、三聚氰胺、季戊四醇为阻燃体系，钛白粉和硅石粉为颜填料，制备超薄型钢结构防火涂料，并研究了基料、阻燃体系、颜填料用量对防火涂料防火性能的影响。

P: paper-based epoxy resin copper-Park Ji-layer paper between phenolic resin and glass cloth epoxy resin substrate board of the electrical characteristics of the middle, humidity, and heat resistance, used in single-and double-sided printed circuit boards, the main purpose of which is the circuit used for a variety of power requirements of high-frequency characteristics of substrate and the color TV, VTR, etc. used in tuning, as well as the board, such as OA machines.

。P：纸质环氧树脂铜泊积层有介于纸质酚醛树脂基板及玻璃布环氧树脂机板中间之电气特性，耐湿性，耐热性，使用于单面及双面印刷电路板，主要的用途是用于各种电源回路用基板及要求高周波特性之彩色TV，VTR等之调谐器用，以及OA机器等机板。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。