The distillationrange of aromatic materials was determined by Raman spectroscopic method.
应用拉曼光谱法测定了芳烃物料的馏程。
2
The feed should not be all distillationrange diesel but part of it which is heavier, deciding the freezing point of diesel.
临氢降凝原料,不应是全馏程柴油,而应是柴油中馏程较重、决定凝点的组分;
3
The extremely pure ester oil or extremely narrow distillationrange of base oil, synthetic hydrocarbon oil to the same height as flash point, using more safe.