高熔点的

Tantalum is an ideal material for hot cathode. It has a low electronic work function, high melting-point, low evaporativity, and good mechanical, high-temperature, chemical properties. Especially in a PCVD ambient for diamond film deposition, its surface is transformed into tantalum carbide which has a much higher melting-point, lower evaporativity and better properties of electron emission.

钽是一种理想的热阴极材料，它具有电子逸出功低、熔点高、蒸发率小、良好的机械性能、高温性能、化学稳定性等优异特点，尤其是在辉光放电PCVD制备金刚石膜的特殊气氛中形成的碳化钽表面层，具有比钽更高的熔点、更低的蒸发率和更好的热电子发射特性。

The physics teacher said to us in class, The melting point of gold was much higher than that of tin.

"物理老师课上对我们说："金子的熔点比锡的熔点高得多。

It is a dense, hard, unreactive, silvery gray metal with an extremely high melting point (5,425 F [2,996 C]).

是一种高密度、坚硬、银灰色的金属，熔点极高(2，996℃)。

It is a dense, hard, unreactive, silvery gray metal with an extremely high melt ing point (5,425 F [2,996 C]).

是一种高密度、坚硬、银灰色的金属，熔点极高(2，996℃)。

The resulting polymer electrolyte possesses 1.57×10~(-3) S·cm~(-1) of ionic conductivity at room temperature when it contain 5wt% of LiBF_4 and 1wt% of zwitterion salt.

研究表明Zwitterion型离子液体1-甲基-3-磺酸正丁基咪唑盐，具有较高的熔点和热分解温度，熔点为219℃，分解温度达320℃。

Si C particle reinforced molybdenum disilicide( Mo Si2 ) matrix composite has been fabricat- ed by wetmixing and hotpresssintering successfully.

Mo Si2 因其熔点高( 2 0 30℃)、密度适中( 6.2 4 g/cm3)、热膨胀系数低( 8.1× 1 0 -6K-1)、复合功能强、韧脆转变温度高( 95 0～ 1 2 5 0℃)、高温抗氧化性能优良而成为理想的高温结构候选材料。

This article makes a study of the effects of six different solvents on lacquer wax extraction of the Japanese Rhus succedanea,concerning the rate of extraction,the albedo value,melting point and chemical characteristics.

研究6种不同溶剂对日本野漆蜡的萃取率、白度值、熔点和化学特征值的影响。结果表明，溶剂种类对日本野漆蜡萃取率和白度值具显著性影响，但对熔点和化学特征值影响较小。试验得出石油醚(30~60℃)是漆蜡萃取的最佳溶剂，浸提温度低，时间短，漆蜡萃取率高，产品白度值高、色泽好，操作过程安全

Therefore, the melts and coalesces of Al during the combustion process can inhibit diffusion of nitrogen from outside due to collapse of the pores.

由于金属铝的熔点较低660℃，而金属锆的熔点较高1855℃，在燃烧反应的高温下，金属铝要熔融团聚，阻碍氮气向试样内部的渗透。

However, there is plenty of high ash melting point coal in China which could not be gasified in almost all entrained flow bed gasifier currently, so it's imperative that a new coal gasification technology should be built out urgently.

煤气化技术是解决未来能源、环境和能源安全战略的核心技术之一，而我国煤炭的特点是高灰熔点煤的储量多，现有的气流床气化技术大都无法满足其高效气化的要求，因此亟待研发适合高灰熔点煤的先进煤气化技术。

The physics teacher said to us in class, The melting point of gold was much higher than that of tin.

&物理老师课上对我们说：&金子的熔点比锡的熔点高得多。

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