例句與造句

1. Raw material analysis done by Semaw showed that some assemblages in this region are biased towards a certain material ( e . g . : 70 % of the artifacts at sites EG10 and EG12 were composed of trachyte ) indicating a selectivity in the quality of stone used.
2. It's difficult to find raw material analysis in a sentence. 用raw material analysis造句挺難的