metal composition

基本解释

The result indicates that Xinmang coins have a strict metal composition and were casted with consummate skill.
研究結果表明，新莽貨幣有嚴格的金屬配比和精湛的鑄造工藝技術。
These planets and their surfaces may be heavily modified by the last, big collision they experience (e.g. the largely metal composition of Mercury or the Moon).
這些行星最近所經歷的大碰撞，會改變他們和他們的表麪。
Based on a great deal of welding procedure qualification data, the mechanical properties prediction models of welding joints were established according to base-metal composition, filler metal compo.
本文針對實際生産過程中，銲接工藝評定要做大量的工藝評定試騐，提出了利用人工神經網絡和遺傳算法來對銲接接頭力學性能預測的方法來改進銲接工藝評定。