maintainer例句：
Clinical application of positive pressure transparent space maintainer
壓膜式間隙保持器的臨床應用
We are a maintainer and builder of the international system.
我們是國際社會秩序的維護者和建設者。
Male sterile line and maintainer line of S~ v type wheat
S~v型小麥雄性不育系及保持系的研究
A study on Breeding Corn Genetic Male Sterile Double Heterozygous Maintainer
玉米基因雄性不育雙雜合保持系的選育研究
You are the cause and the maintainer of the three worlds.
你是三個世界的原因和維系者。