硬黄，读音yìng huáng，汉语词语，意思是纸名。以黄檗和蜡涂染，质坚韧而莹彻透明，便于法帖墨迹的响拓双钩。
在恶劣的上蔟环境中结成的蚕茧，茧色黄而深浓，茧层手触紧硬而弹性弱，缫丝时落绪多，解舒差。
The cocoon spun in poor mounting conditions shows yellow and dark colour, tough hand feeling and weak elasticity, resulting in more dropped ends and lower reelability percentage during silk reeling.
以四川省不同地区慈竹、梁山慈竹及硬头黄竹的叶片为材料，测定叶片可溶性蛋白质含量，采用SDS-PAGE技术研究其可溶性蛋白谱带的差异。
The soluble protein content and its SDS-PAGE patterns in leaves of Neosinocalamus affinis, Dendrocalamus farinosus and Bambusa rigida from the different regions of Sichuan province were studied.
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