hull

C2 大学 FREQ #8354 ★★☆☆☆

n. 壳, 皮, 船体 vt. 去壳

发音

/hʌl/
其它 /hʊl/

词形变化

hulls 复数 hulls 三单 hulling 现在分词 hulled 过去式 hulled 过去分词

释义与例句

n. C2
  1. 1.

    The outer covering of a fruit or seed.

  2. 2.

    Any covering.

  3. 1.

    The body or frame of a vessel, such as a ship or plane.

    船体

    航空 商务 工程 航海 交通
  4. 2.

    The smallest set that possesses a particular property (such as convexity) and contains every point of A; slightly more formally, the intersection of all sets which possess the specified property and of which A is a subset.

    数学

    The orthogonal convex hull of an orthogonal polygon is the smallest orthogonally convex polygon that encloses the original polygon.

    holomorphically convex hull; affine hull; injective hull

v.
  1. 1.

    To remove the outer covering of a fruit or seed.

    She sat on the back porch hulling peanuts.

  2. 1.

    To drift; to be carried by the impetus of wind or water on the ship's hull alone, with sails furled.

    不及物 废旧 航海 交通
  3. 2.

    To hit (a ship) in the hull with cannon fire etc.

    及物

词汇关系

名词

上位词 4

construction structure husk calyx

下位词 1

shell

部分词 3

rib keel keelson

整体词 2

vessel watercraft
动词

上位词 6

take pull remove withdraw take away take off

相关短语

hull breach hull splash hull breaches hull speed hull speeds hull splashes hull splashing hull splashed hull loss 毁机事故 hull operator hull-down （作修饰语用）（船只）远在只见桅杆, 看不到船身的地方（因船身在地平线之下）, （坦克等）隐蔽在能观察敌人并能向其射击的地方 Kingston upon Hull 赫尔河畔金斯敦（英国的一个自治市） turtle hull convex hull [计] 凸包, 凸壳 rice hull 稻壳

词源

From Middle English hul, hulle, holle (“seed covering, hull of a ship”), from Old English hulu (“seed covering”), from Proto-Germanic *hul-, perhaps from Proto-Indo-European *ḱel- (“to cover, hide”); or possibly from Proto-Indo-European *kal- (“hard”). Compare Dutch hul (“hood”), German Hülle (“cover, wrap”), Hülse (“hull”); also Old Irish calad, calath (“hard”), Latin callus, callum (“rough skin”), Old Church Slavonic калити (kaliti, “to cool, harden”). For the sense development, compare French coque (“nutshell; ship's hull”), Ancient Greek φάσηλος (phásēlos, “bean pod; yacht”).

来源：wiktionary