词典 / 科技
grade crossing【铁路】;level-crossing【铁路】
暂无补充释义。
PARACETAMOL DC GRADE
off-grade
diameter grade, diameter class; 又称“径级”。
Phosphoric acid (medicine grade)
steel grade
Dl-Methionine Feed grade / poultry
Sodium Bicarbonate Food Grade
Phosphoric Acid Food Grade
补充或纠正词条 →