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"Grand feu" enamelling is one of the expert techniques that constitute the signature of a Jaquet Droz watch. Master dial-makers perform this operation entirely by hand, playing with fine powders and subjecting them to fire.

"大明火"珐琅工艺是一项专门工艺技术，正是这种技术构成了Jaquet Droz手表的标志，其操作工序完全由大师级的表盘制作家通过手工来制造完成，他们精选上等材料粉末剂，用大明火高温烧制而成。

When flammable powders are dispersed in the air, they can explode.

当可燃的粉末分散在空气中将会发生爆炸。

Fluidization of nano-powders is a world-wide difficult problem in the field of fluidization research.

纳米粉体流态化是流态化研究领域的世界性难题。

The fluidization and separation characteristics of metals and nonmetals in crushed PCB powders were described in the fluidized bed.

在自行设计的气固流态化装置上进行线路板粉碎料中金属和非金属的分离与富集研究。

Nano-agglomerate fluidization technology can be applied not only to fluidize nano-particles, but also to fluidize other dimensional nano-powders.

纳米聚团流态化利用粉体团聚特性使得流态化技术不但可以应用于纳米颗粒体系，而且完全可以推广应用于其它维数的纳米粉体。

After treatment the solution with stable homogeneous dispersions of CNTs and CuSO4·5H2O was prepared. Then, glucose and formol were used as reductant to reduce the Cu2+ and Cu+ in order. After deoxidation, The CNTs and superfine Cu compound powders were obtained.

在这种碳纳米管悬浮液中加入五水硫酸铜，先后用葡萄糖和甲醛对铜实施还原，原位制备了碳纳米管-超细铜粉复合粉体。

The invention of percussion compositions for igniting powders is usually attributed to Forsyth.

通常认为用以引燃的击发药是弗尔赛思发明的。

Aiming to the problem of the brittle fracture of cement sheath caused by perforation and other production enhancing measures after well cementing of thin oil reservoir wells,latex,rubber powders and PVA fibers were studied to reduce cement stone friability and distinguish the toughness and elasticity of cement stone accurately.

针对国内油田薄油层井、小间隙井和侧钻井固井后射孔及后续增产措施造成的水泥环脆裂问题，为了降低水泥石的脆性，正确评价不同材料对水泥石韧性或弹性的影响，对掺有胶乳、橡胶粉和PVA纤维水泥石的抗折强度、抗压强度、抗冲击功和弹性模量等力学性能进行了研究，并对3种材料的作用机理进行了剖析。

The thermograms and differential thermograms of nine Fritillaria powders were obtained by thermal analyzer.

采用热分析方法对9种贝母类中药材的热重/差热图谱进行分析。

The results show that melting point and fusion enthalpy of the fresh nano-aluminium powders are 649.7 ℃ and 3.7 kJ/mol in Ar, respectively, which are 10.3 ℃ and 7.09 kJ/mol lower than those of coarse-grained Al.

研究结果表明：在Ar气流中，新纳米铝粉的熔点为649.7 ℃，熔化焓为3.7 kJ/mol，分别比粗晶铝的熔点(660 ℃)和熔化焓(10.79 kJ/mol)低10.3 ℃和7.09 kJ/mol；在N2气流中，从20 ℃升温到800 ℃时，新纳米铝粉增重约为33%，熔点为648.8 ℃。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐