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Properlies It is yellow Powder with little osmyland taste bitter. The density is 1.42-1.52. Soluble in ethylacatate, ethanol,solution of NaOH and Na2co3, unsoluble in benzene, water and gasoline.Good storage stablility.

性状 淡黄色粉末,微臭,有苦味,无毒,比重1.42-1.52,熔点170以上,易溶于乙酸乙酯,丙酮,氢氧化钠及碳酸钠的稀溶液中,溶于乙醇,不易溶于苯,不溶于水和汽油,贮存稳定。

Based on our results, it is incorrect to combine the twined and untwined hexagonal structure with Form-Ⅰ and Form-Ⅰ'in the literature, and the melt-point is the direct proof.

纠正了文献中将孪生和非孪生作为区分Form-Ⅰ和Form-Ⅰ'判据的不确切看法,证明熔点是其直接的判据。

SiC nanowires grew at the surface of liquid ball and formed villiform nano wire-balls. During the cooling stage in some cases, the SiO reacted with the CO in the furnace to form SiO_2 which then deposited on the surface of SiC nanowires, forming the SiC/SiO_2 nanocable with SiC as the core and SiO_2 as the wrapping layer.

由于Ni-Si化合物跟石墨的浸润性较差,在仅比化合物熔点高出小于200℃的温度区域内,Ni-Si化合物熔体不能在石墨板上熔敷而是形成合金熔球,最后在熔球表面上生长出SiC纳米线形成形状独特的SiC纳米线绒球。

This may seem like overkill but wax like the metals expand about 5% volumetrically near its melting point.

这可能就像是矫枉过正,但蜡像金属扩大约5%, volumetrically近其熔点

But because of the plasmas super high temperature, exceeding the melting point of most commonly metal and alloy greatly, the life problem of zincous should be regard as a great problem.

而无油点火技术中,前沿的课题就是等离子体点火技术,但由于等离子体温度极高,大大超过了一般金属及合金的熔点,那么阳极的寿命问题成为一大重点问题。

Ag-Cu-Zn solder based on Ag matrix has been widely used, with the characteristics of low melting point, good wetting property and caulking property, and high contact strength and so on.

银铜锌焊料是一种广泛使用的银基钎焊料。其特点是熔点较低,润湿性及填缝能力好,接头强度高等。

The crystallizing points decrease with addition of Bi, indicating a decrease of the melting points.

这导致合金的结晶温度降低,也标志着熔点的降低,但熔程扩大。

inferior gold potassium of cyaniding ; complex ion ; chemical formula ; electrochemistry ; cyanide ; heavy crystallization

氰化亚金钾,又称亚金氰化钾,化学式为KAu2·2H2O,白色结晶或粉末,无水物的比重为3.45×103mg/m3,熔点200℃,溶于水,微溶于酒精,不溶于乙醚,有剧毒,主要用于纯金的电镀和用作化学试

MgO-C brick has a good erosion resistance but Al〓O〓-C brick is better. Corrosion mechanism for refractory without carbon is that FeO and oxides of molten slag take place chemical reaction with constituents of refractory and forming low fusing point compounds to be dissolved in molten slag. For those refractory containing graphite carbon is to be decarburized in advance and to form decarburizing layer and metamorphosis layer. The subsequent corrosion is decarburizing and taking chemical reaction to form low fusing point compounds and dissolved in molten slag at the same time.

铁浴中硅和钛的扩散是影响铁浴及熔渣与耐火材料作用的重要因素,耐火材料中添加的TiO〓和SiC受熔渣氧化和侵蚀,将被部分还原形成Si,Ti向铁浴中扩散,Si、Ti在铁浴中的扩散研究结果是: D〓=1.84×10〓exp(-5988.7/T) cm〓/S E〓=49766 J/mol D〓=7.76×10〓exp(-53225.5/T) cm〓/S E〓=442304 J/mol 铁浴式熔融还原熔体对粘土砖,高铝砖,镁砖的侵蚀速度很高,镁碳砖抗侵蚀能力比前几种耐火材料强,但不如铝碳砖;对不含碳耐火材料在熔体中的侵蚀是熔渣中FeO及其它氧化物与耐火材料组分的化学反应形成低熔点物熔蚀进入渣相,产生损毁。

Aiming at the problem of recycling scraps unsymmetrical dimethylhydrzine, eight saturated aliphatic aminimides with low melting points were synthesized after UDMH was alkylated, acidylated and dehydrogenated.

为了解决报废偏二甲肼再利用问题,使偏二甲肼经烷基化、酰基化、脱氢,合成了八种具有较低熔点的饱和脂肪族胺基酰亚胺化合物。

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推荐网络例句

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

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。