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Study on synthesis and properties of low-melting and quick-crystallizing polyester hot-melt adhesive

介绍了常温溶剂型、加热溶剂型和热熔型道路标线涂料的特点及其技术进展。

Higher axial modes,which do not exist in ordinary magnetrons were found by the study of the field patterns.

这一研究结果对进一步开发工业加热高功率连续波磁控管打下了一定的基础。

Chars were prepared from the two coal samples in a temperature programmed muffle furnace, and their structures were analyzed by using FTIR, XRD and RAMAN.

负载Fe2O3煤样在程序升温加热的马弗炉中制备出半焦,利用FTIR、XRD和RAMAN 等分析了半焦结构。

Both TEM photograph and X-ray diffraction indicate that its size is of the ordedr 70〓.

用加热固态Cd〓方法,制备了凝聚相CdSe粒子,X-射线衍射表明它是立方晶体。X-射线衍射计算和TEM分析都说明它们的大小为7nm。

A novel method of preparing activated carbon from tobacco sterns impregnated with KOH by microwave beating was studied in this paper .

研究了微波加热烟杆氮氧化钾活化法制备微孔活性炭的新工艺。

A kind of heating technology of directly heating crude oil in the oil tube by the oil tube and bushing is developed.

提出了一种利用油管和套管作为发热体直接加热油管内原油的方法。

If you had only one match and entered a COLD and DARK room, where there was an oil heater, an oil lamp and a candle, which would you light first?

如果你有只有一个比赛而且进入了一个寒冷又黑暗的房间,哪里有一个油加热器、一个油灯和一根蜡烛,会你轻装地首先?

Graphic processing in the flange is generally a better approach is to do a piece of steel template, a mold release coated oil, plastic folder on the outside with the heating surface so that after the extrusion was melting.

在法兰平面加工上,一般较好的做法,是用钢板做一块模板,上面涂了脱模油,夹放在塑料面上用外加热使之熔化后挤压获得。

In this paper a microwave standard noise source which produces noise by healing a metal filament is described.

本文介绍了一种用加热金属丝来产生噪声的微波标准噪声源。

In order to produce chitin derivative with high-quality, the processing for producing chitin from puparia of silkworm Bombyx mori were optimized: puparia were dipped in 3% HCl for 22 h at 30℃, then in 5% NaOH for 4 h at 85℃, followed by decoloring in 10% H2O2 for 0.5 h under 85℃.

为制备高品质甲壳素衍生物,研究了利用家蚕蛹皮制备甲壳素的最佳工艺条件:将家蚕蛹皮用3% HCl在30℃条件下浸泡22h,再用5%NaOH在85℃条件下水浴4h,然后用10%H2O2于85℃下加热脱色0.5h。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。