在这和中心之间是一种铜银合金.Between this and the core is an alloy of copper and silver.铜基合金电触头是银合金触头的换代产品.Copper - based alloy electrical contact is silver alloy contact replacement.简要分析了银合金变色的原因.The reasons why the silver alloys tar...
木聚糖酶属水解酶类.The xylanase belongs to the hydrolytic enzymes.内切葡聚糖酶活力单位(纤维素酶 )EGU ( endo glucase unit )目的: 米曲霉木聚糖酶生产菌的理性选育及发酵优化.Objective : To screen high xylanase producing strains from Aspergillus oryzae and optimize the f...
氧化过程对 反应烧结 碳化硅材料的导电性能影响不大.But the oxidation of RB - SiC does't affect largely on its electric conduction.常用的轴承材料有碳化硅陶瓷 、 石墨 、 填充聚四氟乙烯等.Commonly used bearing material has SiC ceramics, graphite, PTFE, such as filling...
A batholith has been defined as a huge intrusive mass of granitic rock.岩基的定义是巨大的花岗石侵入岩体.Deferent plutons composing Linglong composite granitoid batholith have deferent degrees of anisotropy of magnetic susceptibility.组成玲...
I spoke from the pulpit ad lib.我在讲坛上发表即兴演说。I lost my notes and had to ad - lib the whole speech.我把讲稿丢了,只好临时说了一通.She delivered her lines ad - lib.她是即兴说出的台词....