粉末

Result The optimal condition was as follow: Raw materials was 0.500 g Chimonanthus praecox Link. dry powder, the extraction agent was 70% alcohol solution, the ratio of raw material to extraction agent was 1:60, the microwave power was 288W, and the extraction time was 450 s for three times.

结果］原料0.500 g的腊梅花粉末，以70%的乙醇溶液作提取剂，提取剂的用量为1：60，微波功率为288 W，在提取时间为450 s下提取次数3为最佳工艺。

White powder, toxic, sweet, specific density 7.10, insoluble in water, soluble in nitric acid, soluble in chlorhydric acid, ammonium acetate and sodium acetate when heated.

白色粉末，味甜、有毒，比重7.10。不溶于水，溶于硝酸、热溶盐酸、醋酸铵和醋酸纳溶液中，可部分溶于醋酸中。

Gold and silver ink business card printing and membership card making tremendous, that is, Business card printing and membership card after making demonstrated unique gold and silver powder suspension and authenticity is for preservation guarantees that the quality, not chromotropic.

金银墨制卡和会员卡制作的最大特点，就是在制卡和会员卡制作之后能表现出特有的金银粉末的悬浮性和成色性，在保存中可保证质量的稳定，不变色。

In this paper, the nanometer Co-Cu-B alloy powders had been prepared in solution of mixing cupric and cobaltous sulphate, by liquid reduction process, on the condition of pure water and the ethanol-water system, using KBH4 as a reducer, PVP as a dispersant.

本研究采用液相还原法，以KBH4作还原剂，PVP作分散剂，分别在二价钴、铜硫酸盐的纯水体系和乙醇-水体系下合成了纳米Co-Cu-B合金粉末。

It was found that increasing pressure for blank can improve the compactedness of blanks so as to make foam aluminium materials with homogeneous pores. Foaming temperature, as one of the main influencing factors on foaming process, should be controlled higher than the melting point of Al or Alalloy to a certain extant in order to keep a reasonable viscosity. Thus, the foam aluminum with homogeneous pores and high porosity is available. As shown by experiments, such materials should be made on conditions that they shall be protected with molten salt under 300?MPa pressure at 675～680?℃.

研究了粉末冶金法制备泡沫铝材料的方法讨论了发泡过程中的保护方式、制坯压力、发泡温度等参数对泡沫铝体积质量、孔隙率、孔结构的影响，并对发泡机理进行了探讨增大制坯压力使得金属坯致密，可以得到孔结构均匀的泡沫铝材料；发泡温度是影响发泡的主要因素之一，发泡温度控制在高于铝或铝合金熔点，同时保持熔体具有一定粘度的范围内，能够得到孔结构均匀、高孔隙率的泡沫铝材料实验结果表明：采用熔盐保护方式，在300MPa的压力下，温度在675～680℃时，可得到孔径均匀、孔隙率高的泡沫铝材料。

Microstructural evolution in laser deposited compositionally graded α/β titanium-vanadium alloys .

杨楠，杨洗陈，&激光熔覆中金属粉末粒子与激光相互作用模型&，光学学报 28，

Description】White or white-Like, powder or crystallin e powder or sparse block.

本品为白色或类白色结晶或粉末或疏松块状物。

Description】white or ashy-yellow crystallin e powder.

本品为白色或灰黄色结晶性粉末。

SiC nanowires were found in crystallochemical analysis of SiBONC ceramic powder, which was synthesized through a polymer pyrolysis route from the raw materials of tetrachloride, phenyle aldehyde, boron trichloride and aniline.

在对SiBONC陶瓷粉末坯体进行高温气压处理时，发现在坯体表面生长出大量β-SiC 纳米线。

Cycloalkylation of diethyl malonate and ethyl cyanoacetate with alkyl halide was investigated in the presence of toluene.

以甲苯为溶剂及带水剂，用粉末K2CO3代替常规使用的乙醇钠，在季铵盐和聚乙二醇混合相转移催化剂的存在下，含有活泼氢的丙二酸二乙酯和氰乙酸乙酯与二卤代物进行缩合反应，得到相应的环化物。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。