butylene造句

• Test method for butylene analysis by gas chromatography
  用气相色谱法分析丁烯的试验方法
• Standard test method for butylene analysis by gas chromatography
  气相色谱法分析丁烯的标准试验方法
• The reaction kinetics of modification of poly butylene terephthalate via solid state polymerization
  固态缩聚法改性聚对苯二甲酸丁二酯的反应动力学