補強

(1)becoming stronger

(2)強くなること

(3)a device designed to provide additional strength; "the cardboard backing was just a strengthener"; "he used gummed reinforcements to hold the page in his notebook"

(4)強さを増すために設計されたもの

(1)the cardboard backing was just a strengthener

(2)厚紙の裏打ちは単に補強のためだ

(3)he used gummed reinforcements to hold the page in his notebook

(4)彼は、ノートにページを貼り付けるのに、接着剤を使った