Most intruments and artifacts were made from wood,rock or bones.
基于1个网页-相关网页
rock or bones
石头或骨头
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The most important naturally occurring phosphate is phosphate of lime or tri-calcium phosphate found as the chief ingredient of phosphatic rock bones and phosphatic guanos.
自然产生的磷酸盐中以磷酸三钙最为重要，它是磷灰石，骨骼和磷质海鸟粪的主要成分。
youdao
应用推荐
模块上移
模块下移
不移动