我喜欢白色的金耳环对黄金的,因为金属工程更好地与大多数宝石。
I prefer white gold earrings over yellow gold ones because the metal works better with most gemstones.
通过对蓝宝石的钨金属化,实现了蓝宝石与铌合金的高温封接。
Sapphire and Nb alloy have been successfully brazed by use of tungsten-metallization technique.
蕴藏于大地之金属、宝石与矿物,除了供应我们的日常生活所需外,它们还平衡了我们的生态环境。
Gems Metals and Minerals hidden inside the land, besides supply our need, they also balance our environment.
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