precover

名词 n. 动词 v.

英文释义

名词 n.
  1. A generalization of a cover in which the kernel may contain a non-zero pure subgroup.
  2. Something that occurs in preparation for a covering.
    — Zineb did not give good control as a precover spray but as a cover spray it gave excellent control of late and storage scab.
动词 v.
  1. To find an older image of an object in archived images after it has been discovered.

词形变化

precovers plural precovers present,singular,third-person precovering participle,present precovered participle,past precovered past

词源

词源 1
From pre- + cover.
词源 2
From pre- + discover.
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