開(kāi)裂，裂開(kāi)到達成熟期時(shí)在一定的位置裂開(kāi)的口子，以釋放或顯露出內含物，如從果實(shí)的裂口處釋放出來(lái)的種子或從花粉囊中散發(fā)出的花粉
An opening at definite places at maturity to release or expose the contents, such as seeds from a fruit or pollen from an anther.
一組卡片，通常是一疊完整的穿孔卡片，它具有確定的服務(wù)對象和明確的用途。
A collection of cards, commonly a complete set of cards which have been punched for a definite service or purpose.
一種表示確定的概念或觀(guān)念的語(yǔ)言元素，例如字樹(shù)。
An element of language that expresses a definite image or idea, for example, the word tree.
