氟化银

The first metamaterial is described as like a nanoscale fishnet stacked with layers of silver and non-conducting magnesium fluoride.

第一metamaterial被称为纳米鱼网一样堆满了层层银和不导电的氟化镁。

After remineralization, the surface structure of samples in Chinese nutgall group and Ag（ NH3 ）2F group became compacter and steadier, with presentation of small blotch and trabs; in NaF group, there was still laeune with trablike structure on the surface of the samples; in deionized group, the surface of samples was honeycomb appearance.

再矿化后，五倍子液和氟化氨银液组表面结构更加致密，均匀，呈小斑块，条索状；氟化钠液组表面也出现条索状结构，但仍有孔隙或腔隙存在；去离子水组表面出现蜂窝状结构。

RESULTS: Before remineralization, through SEM, short blunt eeptoma was found on the surface of lesions of samples in Chinese nutgall group and Ag（ NH3 ）2F group; while in NaF group, globular ecptoma was seen scattering on the surface of the lesions, together with laeune; in deionized group, there was Sharpey＇s fiber.

结果：再矿化前，扫描电镜观察五倍子与氟化氨银处理后牙骨质龋表面形成不规则短钝状突起；氟化钠液组形成大小不一的散在大球状突起，可见一些腔隙存在；去离子水组大量分布夏伯氏纤维。

Sulfur compounds in the diesel were selectively derived into methylsulfonium salts by reacting with iodomethane in the presence of silver tetrafluoroborate, and characterized by positive-ion electrospray ionization fourier transform ion cyclotron resonance.

在四氟硼酸银的催化作用下，以碘甲烷对直馏柴油进行甲基衍生化反应，使其中的有机硫化物转变成极性较强的锍盐，再用电喷雾－傅立叶变换离子回旋共振质谱仪进行检测。

With the in-situ single-stage self-metallization protocol,surface-silvered polyimide film has been prepared using pyromellitic dianhydride/ 4,4\'-oxydianiline-based polyimide as the matrix and (1,1,1-trifluoro-2,4-pentadionato)silveras the silver precursor.

在原位一步自金属化法中，以均苯四甲酸酐/4，4\'-二胺基二苯醚基聚酰亚胺为基体，以三氟乙酰丙酮银作为银的母体制备出了表面金属化的聚酰亚胺银复合薄膜。

First, the second category of professional pressure vessel design, manufacturing company specializes in designing and manufacturing various specifications strong magnetic coupling blender, stir strong magnetic coupling of high pressure - reactor, hydrogenation reactor, polymerizer, magnetic glass kettle, ultrahigh-pressure cauldron of hot water, Sulfide cans, refined liu kettle, autoclave reactor, pipeline reactor, mechanical seal reactor and its associated pressure tank, the condenser, Tajikistan, etc., its structure, low-pressure high school, heating, stirring form, the changes in speed, automatic Can be controlled by standard or as requested by users of matching custom, the main material 0 Gr18Ni9 (304), 0Gr18Ni10Ti (321), 0 0Gr17Ni14Mo2 (316L / 2 Mo Ti), and other trademark stainless steel, titanium, Hastelloy alloy, Study Nile because of alloys, nickel-wood, wood of Zirconium, tantalum wood, silver material, of tetrafluoroethylene, carbon steel, and composite materials as its use of composite panels made of.

一、二类压力容器专业设计、制造公司专业设计制造各种规格强磁力偶合搅拌器、强磁力偶合搅拌高压—反应釜、氢化釜、聚合釜、磁力玻璃釜、超高压水热合成釜，硫化罐、精镏釜、蒸压釜、管道反应器、机械密封釜，及与其配套的压力罐、冷凝器、塔器等，其结构形式、高中低压、加热方式、搅拌形式、转速变化、自动控制均可按标准或按用户工艺要求进行选配定制，主体选材0Gr18Ni9（304）、 0Gr18Ni10Ti（321）、0 0Gr17Ni14Mo2（316L/钼二钛）等各种牌号不锈钢、钛材、哈氏合金、因考耐尔合金、镍材、锆材、钽材、银材、四氟存里、碳钢等，及用其材料复合成的复合板制成。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失