The gross rubber has a high plasticity and fluidity and gumminess of composition is increased.其具有较高的塑性及流动性并使胶料粘性增加....

n.树胶质，黏性...

gumminess的音标：gumminess的英式发音音标为：['gʌmɪnɪs]gumminess的美式发音音标为：['gʌmɪnɪs]...