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 ...
结果她拄上了拐杖，后来又用上了助行架，最后连房门都出不了了。She eventually used a cane, then a walker, and finally was confined to the house.终于, 我妈妈开始用助行架在室内走动, 身后拖着氧气管,跟着奥托.Eventually, using a walker, Mom began to take walks through the house....