A kind of PEG-MAH (maleic anhydride to modify polyethylene glycol) crystalline polymer whose melting point was approxima......

A field trial was conducted to investigate the changes of endogenous hormone concentration (EHC) during formation and th......

对具有极小内外圆角、在横向和纵向均存在厚度差的带轮零件，进行冲锻成形。利用DEFORM‐3D软件，对该带轮零件的冲锻成形工艺中的增厚......

为了满足国家对填埋污泥含水率的新要求,国内许多将污泥离心脱水后外运填埋的污水处理厂将需要考虑污泥离心脱水设备的替换。为了......

地层不整合对油气成藏具有重要作用,不整合面上下形成的油气藏均与不整合面有关.论述了不整合面结构、类型以及不整合面上下岩性配......