colourless spectacle glass

The characteristics of the colorless function couplers were mentioned.

简述了在彩色显影中无色功能性成色剂的特点、结构类型和作用机理。

The technological development of main chemicals in NCR production is reviewed:color developing agent,lueco dye,micro-capsule,etc.

本文综述了无碳复写纸的主要化工原料 :显色剂、无色染料、微胶囊等的技术发展。

In onder that comprehensive utilizing scallop to manufact leftover bits and pieces, this paper studied the technology condition and methods of producing colorless soy sauce.

本文主要研究了综合利用扇贝加工下脚料(俗称扇贝边)制取无色酱油的工艺条件和方法。