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residue造句
211. In general, an inorganic residue is much more detrimental to the operation of the waveguide. 212. The new receptors are compared with previously reported urea-based receptors targeting the glutamic acid residue and receptors targeting the pteridine substructure of folic acid. 213. During activity stabilization state of residue hydrotreating catalyst, distillate containing sulfiding agent was fed into the catalyst bed so as to enhance sulfur content in the hydrogen recycle.