树脂

This paper prepared three types of Uron resin according to different kind of synthesis processes, and then obtained several mixed urea-formaldehyde resin sby mixing Uron resins with normal UF resins at different experiment conditions.

以不同工艺制备了三种含尤戎结构的脲醛树脂，通过其与普通脲醛树脂的混合制得多种混合脲醛树脂。

Oil and polyol firstly hydrolyze, and then react with maleic anhydride to give semi ester, the residual maleic anhydride hydrolyzing to give maleic acid, finally are adducted with DCPD. The result of experiment shows that the synthesized resin is of perfect air drying performance and improved flexibility and anti-greening because of the use of oil, meetin...

试验结果表明，油与多元醇在210～220℃下先醇解，然后与顺酐反应形成半酯，剩余顺酐水解成顺丁烯二酸，然后与DCPD加成，合成的树脂具有优良的空干性；同时油的使用极大地提高了涂膜的柔韧性和抗绿化性，得到的树脂性能上可满足涂料用不饱和聚酯树脂的要求。

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。

They are irregular hemisphere particals.which have good resistance to crushing,resistance to crocking ,abrasion resistance,appropriate levelling and fast drying.They also have good resistance to yellowing and ageing resistance.They are used as a binder specially for road marking paints.

本树脂产品是专门为道路标线涂料应用生产，使用本树脂配制而成的道路标线涂料具有耐压、耐磨、抗污染、流平性适中及干燥速度快等特点，具有抗黄性好、耐老化等优点，是一种专门应用于热熔道路标线涂料作连结剂的树脂。

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。

Or a fossilized resin of these trees, used in varnishes and enamels.

考里松树脂这种树的古巴树脂或化石树脂，用于装饰和涂瓷漆

The stability ofradioactive microspheres can be improved by coating with ploT-L-lactic acid; however,about 60% of the activity leaches from the microspheres in this process, and approximately10% of the activity leaches after washing with saline. Fortunately, 30% of the activityremained stably in the resin microspheres.

体外稳定性实验结果表明：1采用离子交换法制备的放射性树脂微球标记核素脱落严重，使用聚乳酸包被放射性树脂微球可以提高其稳定性，但是包被过程中约有60％核素脱落，生理盐水洗涤约有10％的核素继续脱落，不过剩余的30％稳定存在于树脂微球上。

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。

PLASTICS AND RESIN: AB、ABS emulsion, uric acid resin, phenolic aldehyde resin, urea-formaldehyde resin, formaldehyde resin, polythene,poly-chloroprene and etc.

塑料树脂： AB，ABS乳液、尿醛树脂、酚醛树脂、密胶甲醛树脂、聚乙烯、聚氯乙烯等。

AB, ABS emulsion ,uric acid resin, phenolic aldehyde resin, urea-formaldehyd e resin, formaldehyde resin, polythene, poly-chloroprene and etc.

塑料树脂 AB、 ABS乳液、尿醛树脂、酚醛树脂、密胶甲醛树脂、聚乙烯、聚氟乙烯等。

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。