泵的抽气速率与气体的性质有关.Lashing velocity of pump is concerned with nature of air.现在已经采用了低温吸附技术和吸气离子泵的近代电子抽气设备.Recent electronic means of pumping using low temperature sorption techniques and getter - ion pumps have been introduce...
Aberrant larvae may lodge in the liver, producing granulomatous lesions and hepatomegaly.蛔蚴可误入肝门, 引起肉芽肿性损害及肝肿大.Terminal can have hepatomegaly, icteric, bloated, ascites.晚期可有肝肿大 、 黄疸 、 浮肿 、 腹水.A hyperactive deep tendon re...
The marae - the meeting house and the land around it - is the focus of Maori community life.马拉埃 -- 聚会大厅及其周围土地 -- 是毛利人村社生活的中心.Suddenly all of the bizarre and seemingly isolated examples took on a meaningful focus.突然之间，所有那...