在同面积或长度扩张或伸张,共同扩张
Coextend \Co`ex*tend\, v. t. [imp. & p. p. {Coextended}; p. pr. & vb. n. {Coextending}.] To extend through the same space or time with another; to extend to the same degree. According to which the least body may be coextended with the greatest. --Boyle. Has your English language one single word that is coextended through all these significations? --Bentley.