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birch    音标拼音: [b'ɚtʃ]
n. 桦树,桦木,桦条

桦树,桦木,桦条

birch
adj 1: consisting of or made of wood of the birch tree [synonym:
{birch}, {birchen}, {birken}]
n 1: hard close-grained wood of any of various birch trees; used
especially in furniture and interior finishes and plywood
2: any betulaceous tree or shrub of the genus Betula having a
thin peeling bark [synonym: {birch}, {birch tree}]
3: a switch consisting of a twig or a bundle of twigs from a
birch tree; used to hit people as punishment; "my father
never spared the birch" [synonym: {birch}, {birch rod}]
v 1: whip with a birch twig

Birch \Birch\ (b[~e]rch), n.; pl. {Birches} (-[e^]z). [OE.
birche, birk, AS. birce, beorc; akin to Icel. bj["o]rk, Sw.
bj["o]rk, Dan. birk, D. berk, OHG. piricha, MHG. birche,
birke, G. birke, Russ. bereza, Pol. brzoza, Serv. breza, Skr.
bh[=u]rja. [root]254. Cf. 1st {Birk}.]
1. A tree of several species, constituting the genus
{Betula}; as, the white or common birch ({Betula alba})
(also called silver birch and lady birch); the dwarf birch
({Betula glandulosa}); the paper or canoe birch ({Betula
papyracea}); the yellow birch ({Betula lutea}); the black
or cherry birch ({Betula lenta}).
[1913 Webster]

2. The wood or timber of the birch.
[1913 Webster]

3. A birch twig or birch twigs, used for flogging.
[1913 Webster]

Note: The twigs of the common European birch (B. alba), being
tough and slender, were formerly much used for rods in
schools. They were also made into brooms.
[1913 Webster]

The threatening twigs of birch. --Shak.
[1913 Webster]

4. A birch-bark canoe.
[1913 Webster]

{Birch of Jamaica}, a species ({Bursera gummifera}) of
turpentine tree.

{Birch partridge}. (Zool.) See {Ruffed grouse}.

{Birch wine}, wine made of the spring sap of the birch.

{Oil of birch}.
(a) An oil obtained from the bark of the common European
birch ({Betula alba}), and used in the preparation of
genuine (and sometimes of the imitation) Russia
leather, to which it gives its peculiar odor.
(b) An oil prepared from the black birch ({Betula lenta}),
said to be identical with the oil of wintergreen, for
which it is largely sold.
[1913 Webster]


Birch \Birch\, v. t. [imp. & p. p. {Birched} (b[~e]rcht); p. pr.
& vb. n. {Birching}.]
To whip with a birch rod or twig; to flog.
[1913 Webster]


Birch \Birch\, a.
Of or pertaining to the birch; birchen.
[1913 Webster]


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  • Birch - Wikipedia
    Birches are early tree species to become established in primary successions, and can become a threat to heathland if the seedlings and saplings are not suppressed by grazing or periodic burning
  • Birch (Revealbot) - where creativity meets performance
    Bïrch provides social media marketing teams with tools to automate campaign management, optimize performance, and gain creative insights across platforms like Meta, Google, TikTok, and Snap
  • BIRCH聚类算法详解(手撕代码) - 知乎
    BIRCH算法全称为「基于层次结构的平衡迭代规约与聚类」,其创新性地将数据归纳与聚类过程融合于树形结构操作。 该算法突破性地通过单次数据遍历实现高效聚类,其关键在于构建名为 聚类特征树(CF Tree) 的动态索引结构。 CF Tree采用类B+树的平衡多级架构,但节点存储单元并非原始数据,而是称为 聚类特征(CF) 的统计量集合。
  • birch是什么意思_birch的翻译_音标_读音_用法_例句_爱词霸在线词典
    1 hard close-grained wood of any of various birch trees; used especially in furniture and interior finishes and plywood 2 any betulaceous tree or shrub of the genus Betula having a thin peeling bark
  • 机器学习笔记(九)聚类算法Birch和层次聚类Hierarchical clustering
    本文深入探讨了Birch聚类算法,这是一种适用于大规模数据集的层次聚类方法。 Birch通过构建聚类特征树 (CFTree)实现快速聚类,只需单遍扫描数据。 文章详细阐述了CFTree的构建过程,包括聚类特征的定义、树结构及构建流程,并对比了Birch与MiniBatchKMeans的性能。
  • Birch | Description, Tree, Major Species, Facts | Britannica
    Birch, genus of about 40 species of short-lived ornamental and timber trees and shrubs of the family Betulaceae, distributed throughout cool regions of the Northern Hemisphere They are valuable in reforestation and erosion control, and many are cultivated as ornamentals for their attractive foliage and bark
  • BIRCH中文 (简体)翻译:剑桥词典 - Cambridge Dictionary
    an official punishment in the past, that involved hitting a person across the bottom with thin sticks The thins sticks are also called the birch
  • Birch restaurants
    Birch is Chef-owned gastronomic restaurant led by Chef Arslan Berdiev, whose Central Asian roots and Turkmen heritage inspire a cuisine that blends contemporary European, Asian, Oriental, and other extraordinary flavors
  • BIRCH(综合层次聚类算法)_百度百科
    BIRCH(Balanced Iterative Reducing and Clustering using Hierarchies)是由Tian Zhang于1996年提出的综合层次聚类算法,中文全称为“利用层次方法的平衡迭代规约和聚类”。
  • BIRCH聚类算法 - 知乎
    BIRCH的全称是利用层次方法的平衡迭代规约和聚类(Balanced Iterative Reducing and Clustering Using Hierarchies),它是用层次方法来聚类和规约数据。 BIRCH只需要单遍扫描数据集就能进行聚类,那它是怎么做到的呢? BIRCH算法利用了一个树结构来帮助我们快速的聚类,这个树结构类似于平衡B+树,一般将它称之为 聚类特征树 (Clustering Feature Tree,简称 CF Tree)。 这颗树的每一个节点是由若干个聚类特征 (Clustering Feature,简称CF)组成。





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