1) backup cycle
备份周期
3) spare parts fund
储备周期
1.
Because using of the principle of minimal storage quantity and shortest storage period for spare parts storage in the production,the spare parts storage is reduced and the run of spare parts fund is speeded.
山东烟台钢管总厂在生产中运用最少储备量和最短储备周期原则，减少备件库存，加快备件资金周转，同时严格控制备件质量，避免资金浪费和间接损失，并采用现代化管理手段，加强备件管理，从而压缩了备件库存资金。
4) preparation periods
制备周期
1.
The effect on separation of microorganisms,bio-catalytical oxidation rate of Fe2+,preparation periods and membrane pollution were investigated by using poly-vinylidene fluoride hollow fiber membrane(PVDF) to separate microorganisms.
考察了应用聚偏氟乙烯中空纤维微滤膜(PVDF)对微生物的分离效果,Fe2+的生物催化氧化速率,制备周期及膜的污染与处理的情况。
6) major repair cycle period
设备的大修周期
补充资料：备份
①备用的一份：～伞（备用的降落伞）ㄧ～节目。②〈方〉充数；空设。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条