利率的下调将有助于缓解经济衰退的压力。Reduced interest rates would help ease recessionary pressures in the economy.许多房屋的卖主仍然陷在经济衰退的困境中。Many home sellers remain stuck in a recessional rut.建筑业受到经济衰退的严重影响。The construction industry was clobber...
由金相显微结构的观察,焊合状态可区分为无焊合缝、散洞状 、 细线状及粗条状等四种.The bonding status could be categorized into well bonded scattered holes, thin line and strip.分析了弯曲强度、断裂挠度与焊合率之间的关系及接头的金相组织.The micro structures and the relations between bonding ...