利用新研制的短波传播时延实时数字显示系统，在武汉电离层观象台对BPM时号的传播时延进行了长时间连续观测。
Continous observations of the propagation delay variation of BPM standard time signal were carried out in real time at Wuhan Ionospheric Observatory by a digital display system.
根据汽油机燃烧火焰电离原理，试制成功了一台火焰传播测试仪。
Being based upon the flame ionization principle, a flame detector to investigate the flame propagation inside the gasoline engine is developed.
根据汽油机燃烧过程中火焰电离的原理，成功地试制了一台火焰传播测量仪。
Based on the flame ionization principle, a flame detector was developed to investigate the flame propagation inside the gasoline engine cylinder with TJ-jet combustion system.
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