agate bead 玛瑙珠 He saw before him a flight of agate steps. 他看到前面有一段玛瑙做的台阶。
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... 蓝玛瑙项链(Agate bead) 花玛瑙项链(Agate bead) (角状色带),微透明,玻璃光泽,硬度H=6.5,比重SG=2.58-2.64,折射率RI=1.53-1.54 ...
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agate e bead 玛瑙珠
·2,447,543篇论文数据,部分数据来源于NoteExpress
To qualify as pure, a bead must be genuine etched agate and lie within a certain range of styles.
一颗至纯天珠必须是纯正的镶蚀玛瑙并且对形制规格有着固定的限制。
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