protective atmosphere

The result shows that solid powder titanizing without protective atmosphere is available, and the optimal titanizing temperature is at 950 ℃ or so, the optimal titanizing time is 4 hours or so.

结果表明，在无保护气氛下固体粉末渗钛是可行的，但其最佳渗镀温度为950℃左右，最佳渗镀时间为4h左右。

Application of Tension in the Imported Continous Bright Annealing Furnace with Protective Gas Atmosphere

国外带钢光亮连续热处理炉张力的使用

Design of Copper Tube Bright Annealing Furnace under N_2-H_2 Protective Atmosphere

氮氢保护铜管光亮连续退火炉

B . Continuous decomposed ammonia protective atmosphere annealing furnace.

连续式氨分解保护气氛退火炉.

Composition distribution on the interface of thermally sprayed Ni-Al coating which is reactively sintered at median temperature under protective atmosphere has been studied by SEM. A transition zone of about 20 μ m in width with metallurgical binding at the interface has been found.

将Ni Al混合喷涂层在中温保护气氛下反应烧结，通过SEM观察界面附近各成分的分布情况，发现在界面附近有宽度大约为20μm的过渡区并呈冶金结合。

Scientists say the Northern Lights, a natural phenomenon called aurora borealis, is created by the sun's super hot atmosphere, which blasts particles into the protective magnetic field surrounding the Earth. The magnetic field forces the particles toward the north and south poles.

科学家解释说，北极光是一种由太阳超高温大气层所引起的自然现象。来自太阳的带电粒子闯入地球周围的保护性磁场后，地球磁场迫使它们向南北两极运动。

The Northern Lights, also known as aurora borealis, are created by the Sun's atmosphere, which blasts particles into the protective magnetic field surrounding the Earth.

北极光来自太阳大气层，是太阳的激烈活动爆发出粒子进入了地球的保护磁场而出现的自然现象。

AZ 91 magnesium preform with complete shape prepared using spray forming technology under protective atmosphere.

在保护气氛中采用喷射成形制备技术制备了形状完整的AZ91镁合金沉积圆柱坯.