基本解释填料同根派生 packings相关词英汉例句Gel-permeation columns based upon soft gels still can be problematic, but you shouldn't worry when using silica-based packings.凝胶渗透柱子基于软硅胶,所以仍然是个问题,不过你使用硅胶基的填料就不必担心。packings更多例句