petroleum tar 中文意思是什麼
petroleum tar
解釋
石油柏油-
For example, petroleum, paints, lacquers varnishes, coal tar, cements liquid, etc. we successfully developed long - term sustained relationship with our customers, we are committed to provide them continuously with excellent and safety service
我們於1999年起開始提供第5類危險品運載服務，第5類危險品為易燃物品，例如石油油漆透明光漆等等。我們已成功地與客戶建立長遠合作關系，在未來，我們亦將會不斷提供更完善之增值服務。 -
Test method for shear viscosity of coal - tar and petroleum pitches
煤焦油和石油瀝青剪切粘度測試方法 -
Abstract : the utilization and the prepartion methods of 2, 6 - dmn are introduced. the separation and purification processes of 2, 6 - dmn from coal and petroleum tar are reviewed
文摘:本文介紹了2 ， 6 -二甲基萘的用途和制備方法；綜述了從煤焦油和石油中分離提純2 ， 6 -二甲基萘工藝。 -
Standard test method for shear viscosity of coal - tar and petroleum pitches
煤焦油和石油硬瀝青剪切粘度的試驗方法
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