adj.中低
Flat seating faces for low and medium pressures. 适用于中低压力的平面阀座表面。
This paper reports the analyses of the low carbon compositions in fusel oil by using gas chromatographic technique. 本文报导气相色谱法分析测定杂醇油中低碳成分的测定条件和分析的准确度的评价。
