Extra Coarse 很粗糙
extra coarse asphalt macadam 特粗粒径沥青碎石
super extra coarse cemented carbide 特粗晶硬质合金
The preparations of solidified extra-fine sand coarse aggregates and the concrete made by the solidified aggregates were studied.
对以长江粉细砂制造固结集料及其配制的混凝土进行了研究。
The extra vanadium exists in austenite as coarse vanadium enriched carbides or in bainite as vanadium carbide particles.
一部分钒以含钒碳化物的形式呈块状存在于奥氏体中或呈颗粒状分布在贝氏体基体中。
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