blind core

基本解释暗砂心

网络释义

1)blind core,暗砂心2)bedding a core,砂心垫砂3)decoring,砂心清砂4)dry core sand,干砂心砂5)core sand,心砂6)dark coloured cores,暗色核心

用法和例句

A variety of Chatham flux-grown ruby with the dark coloured cores developed by the Chatham Company is available in gem markets recently.

一种具暗色核心的助熔剂法合成红宝石近期由查塔姆公司推向珠宝市场。

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