The hypersonic velocity of the flame shortens the time of interaction between the powder and flame, while the low temperature of flame limits the grain growth and decomposition of coating.
火焰的高超声速速度缩短了粉末与火焰之间的相互作用时间，而火焰也促使了颗粒增长和涂层分解的低温限制。
Corrugation causes increased noise and higher maintenance costs while RCF shortens rail life and is a constant safety issue.
波纹磨损会导致噪音增大和维护费用上升，而RCF则缩短了钢轨的寿命并引起长期的安全隐患。
This drastically shortens the time required for sample preparation while improving the decomposition quality.
从而大幅度地降低了样品制备时间并且提高了消解品质。
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