In this paper low-frequency vibration problems of rotating machinery are investigated.
应用时频分析方法研究了回转机械低频振动问题。
In this paper, low ash content anthracite was taken as the investigated subject, thermolysis process of anthracite and petroleum coke were investigated at the same time.
本文以低灰无烟煤为研究对象，对无烟煤和石油焦的热解进行了考察。
In this paper, low mature mudstone and limestone from Carboniferous System in Tarim Basin have been studied by the thermal simulating experiment.
对塔里木盆地石炭系低成熟的泥岩和灰岩生油岩进行了热模拟实验研究。
In this paper, low-melting filler metals for LY12 aluminum alloy were developed, which can be the foundation of aluminum alloy joining at a lower temperature.
本文设计了用于钎焊硬铝合金ly 12的低熔点钎料，为实现铝合金在更低的温度下连接提供基础。
In this paper, low-melting filler metals for LY12 aluminum alloy were developed, which can be the foundation of aluminum alloy joining at a lower temperature.
本文设计了用于钎焊硬铝合金ly 12的低熔点钎料，为实现铝合金在更低的温度下连接提供基础。
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