熔点低的

The low melting point of cocoa butter allows white chocolate and chocolate to remain solid at room temperature.

可可黄油的低熔点允许白巧克力在口腔中轻松融化。

And then the effects of compositions on the mechanical performance, characteristic temperatures, thermal expansion and chemical stability of the glass were discussed. Researches on lead borate sealing glasses show that PbO/B2O3 ratio exerts the most important effect on glass network. ZnO is beneficial to stabilize the glass against devitrification . Bi2O3 has little effects on the sealing temperature, while it helps to adjust the thermal expansion coefficient of lead borate glasses in a definitive range. When 0.5～4 mol% GeO2 is introduced, the glass possesses the highest stability and lowest sealing temperature (400 ?C), which is desirable for low-temperature sealing.

通过对含铅的硼酸盐封接玻璃研究得出，PbO/B2O3比是影响玻璃网络最主要的因素；添加ZnO有助于增强玻璃的稳定性，抑制析晶；Bi2O3对高铅系列配方玻璃的封接温度影响不大，但可使铅硼系列玻璃体系的热膨胀系数在一定范围内可调；在高铅系列配方中，引入0.5～4mol%的GeO2可有效地抑制玻璃析晶，降低封接温度；最终获得了两种性能较好的低熔点铅硼酸盐封接玻璃配方，G3封接温度低达400℃，其PbO含量为54mol%左右，BL10玻璃的封接温度为440℃，但其铅含量大大降低，仅为36mol%。

Because the carbonyl in its structure is with strongly absorb-electron effect, so it is a kind of non-proton polarity solvent with high boiling point, high flash point and low melting point, use conveniently for many processing operation such as filtration, distillation, solvent extraction, and so on; it is with very low toxicity, so the harm to human body is inappreciable, and reduce the environment pollution; due to its very strong dissolvability, it can dissolve organic matter, inorganic matter, resin, polymer, etc., and activate all kinds of reagent, mix to dissolve the other high boiling point solvents; it is with very good stability, it is stable under the hot strong alkali and acidity condition, it is with water-resistance and light, oxygen stability.

246℃ m.p：—20℃闪点121℃ flash point： 121℃分子式：C6H12N2O molecular formula： C6H12N2O 分子量128.18 molecular weight： 128.18 二、DMPU的化学性质 Chemical character of DMPU 其结构中由于羰基具有强烈的吸电子效应，因而它是一种非质子的极性溶剂，具有高沸点、高闪点、低熔点，在过滤、蒸馏、溶剂萃取等工艺操作中使用方便；毒性极低，对人体危害微不足道，也减少了对环境的污染；由于它具有极强的溶解性，能溶解有机物、无机物、树脂、聚合物等，并对各种试剂具有活化性质，还能与其它高沸点溶剂混溶；具有极好的稳定性，在热的强碱和酸性条件下都很稳定，还具有耐水性及对光、氧的稳定性。

The core sand binder can be characterized with higher strength,easy collapsibility,better gradation and l ess cost,hence it is particularly suitably used in non-ferrous metal castings.

它 的主要特点是：强度高、溃散性好、无毒、无污染、成本低，特别适用于低熔点的铝、镁合金及铸铁件的生产。

An investigation to the microstructure of worn sample of dry vibratable materials for tundish working lining after using 40 hours shows that the materials changes the properties of slag by the chemical filter, increases the viscosity of slag, forms a dense layer at slag/refactories interface, then blocks the more slag penetrate in it. The complex phase formed at the interface, such as magnesiowusite and complex spinel et al, would absorb in more low-melting point minerals, then degrade its melting point and dissolve into slag, which forms low-melting point silicate phase, penetrates into dry vibratable materials along with Monticellite and Merwinite bonding phase by diffusion.

根据使用40小时后的中间包工作层残衬结构分析，其侵蚀机理为：干式料对渗入熔渣产生化学过滤作用，增大熔渣粘度，在干式料/熔渣界面形成致密结构，阻碍熔渣的进一步渗透；随着反应的进行复合矿物中熔剂含量的增多，熔点降低，溶于熔渣形成低熔点的硅酸盐相，并沿着干式料中的钙镁橄榄石和镁蔷薇辉石等结合相向干式料基质中扩散渗透。

Impact of composition upon the cold flow properties for biodiesel was investigated with gas chromatography-mass and cold filter plugging point tester based on the theories of molecular structure and crystal growth. Biodiesel may be considered a pseudobinary mixture consisting of components, with high-melting-point saturated fatty acid methyl esters and with low-melting-point unsaturated ones.

从分子结构出发，根据结晶理论，应用气质联用仪和低温性能测试仪研究生物柴油的组成对低温流动性的影响，为改善生物柴油的低温流动性提供理论指导，并提出生物柴油是伪二元混合物（高熔点的饱和脂肪酸甲酯和低熔点的不饱和脂肪酸甲酯）的观点。

Our main dealing area is air conditioning refrigeration/cutting tools/ hard alloy tool/ diamond cutting tool/saw/ metal vlexible hose/ healthy body equipment/medical equipment/fishing equipment/bicycle/ metal furniture/ large-scale petroleum drilling/fire prevention and so on.

我公司生产的控温低熔合金有着独特的产品质量与良好的社会口碑，品牌控温低熔点合金钎料在广大的客户群中产生了巨大的影响与波动！斯耐特品牌已经在广大客户心中留下了深刻的印象。

By analyzing and comparing the above test results, the special demands for welding current and time and pressure in the spot welding of zinc-coated steels were put forward.

而在这些产品的装配和制造中，往往会用到电阻点焊方法，由于镀锌钢板表面锌层的熔点很低、硬度也低，给点焊带来一定的困难［1］。

So the thickness of transporting metal piece should be raised up. If we choose copper as electricity transporting piece which has a low melting point, it is easy for melt copper to flow to inside tube.

在石墨管处使用低熔点的导电片铜时，熔融的铜易向石墨管内壁流动，将引起电流的持续下降，此处必须使用高熔点的金属如钼片予以隔绝。

The fats are characterized by their high content of lauric acid (40%--50%), moderate amounts of C6, C8, and C10 fatty acids, low content of unsaturated acids, and low melting points.

这类脂肪的特征是月桂酸含量高(40%～50%)、中等含量的Cj、C8和C10脂肪酸，低不饱和酸含量和低熔点。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。