For example, trained observers obtain a very large amount of information about a star mainly from the accurateanalysis of the simple lines that appear in a spectrum.
例如,经过训练的观察者主要通过对光谱中出现的简单线条的精确分析来获取关于恒星的大量信息。
2
Scientific and accurateanalysis and calculation on the requirement for traction force is necessary when the impact compactor is working.