preserver r储藏柜
dre preserver护衣汗垫
preserver area禁猎区
conscious preserver自觉得环保者
linear preserver线性保持问题
additive preserver加法保持
dress preserver护衣汗垫;护衣汗衫
Doodad Preserver装饰物保留物
Wine Preserver酒质保存气
"Linear preserver problems" is a both old and young project. It has more than one hundred years old.
“线性保持问题”是一个既古老而又年轻的课题，这一课题已有一百多年的历史，至今仍十分活跃而且不断涌现出大量新的研究结果。
参考来源 - 一类分块三角矩阵代数的保持秩一的线性满射The method for making silkworm cocoon preserver is very simple. The effect of silkworm cocoon preserver on loquat fruit is investigated.
试验研究了蚕茧保鲜剂对枇杷保鲜的效果。
参考来源 - 蚕茧制备的果品保鲜剂及应用研究