Marine diesel power is an important component of ships , whose maintenance of good technological conditions is a key task of ship . the monitoring technology of lubricant is one of the current international trends in the engine power monitoring , failure diagnosis , invalidation analysis , and prevention maintenance focusing on security 船舶柴油机动力装置是船舶的重要组成部分，保持船舶柴油机动力装置的技术状态良好是轮机管理的关键性工作，而船舶油液监控技术是当前国际船舶动力装置状态监测、故障诊断、失效分析，实现以可靠性为中心的预防维修的发展大趋势之一。
Pre - differentiation and proper partial desiccation of calli before transferred to regeneration medium was found to apparently improve the frequency and quality of plant differentiation . with our optimized culture condition and treatment style , induction frequency of pei ' ai64s and 9311 can be reached 62 . 45 % and 85 . 30 % respectively and after 3 months of subculture calli can remain high - quality embryogenic state , when high - quality embryogenic calli after two times of subculture were used as acceptor , callus differentiation frequency can arrive at 85 . 5 % and 87 . 7 % respectively 采用我们优化后的培养条件与处理方式，培矮64s和9311愈伤组织的诱导频率分别可达到62 . 45和85 . 30 ；继代培养时间达三个月左右仍能保持较好的胚性生长状态；对于继代两次胚性生长状态良好的愈伤组织分化频率分别可达到85 . 5和87 . 7 。
