NR Naura瑙鲁
D NR数码降噪;支持
NR RUBBER天然橡胶
NR Threshold降噪门限;降噪门榄
NR latex由天然胶乳;NR胶乳
My NR帮助中心
Nauru NR瑙鲁
NR Fund邻里振兴基金
Nr tomatoNr番茄
The results showed that the Shore A hardness and 300% modulus of the base rubber were increased as the content of sulphur and accelerator increased,and the tensile strength was increased as the mass ratio of NR to BR increased.
结果表明:增加硫磺和促进剂的量,提高了三角带底胶试验胶的硬度和300%定伸应力。 增加天然橡胶和顺丁橡胶的质量比提高了三角带底胶试验胶的拉伸强度。
参考来源 - 木质素ABBREVIATION for（） ABBREVIATION fornear 接近