英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

pi    音标拼音: [p'ɑɪ]
n. 圆周率;混杂的铅字堆;混乱

圆周率;混杂的铅字堆;混乱

pi
n 1: the ratio of the circumference to the diameter of a circle;
approximately equal to 3.14159265358979323846...
2: someone who can be employed as a detective to collect
information [synonym: {private detective}, {PI}, {private eye},
{private investigator}, {operative}, {shamus}, {sherlock}]
3: the scientist in charge of an experiment or research project
[synonym: {principal investigator}, {PI}]
4: the 16th letter of the Greek alphabet
5: an antiviral drug used against HIV; interrupts HIV
replication by binding and blocking HIV protease; often used
in combination with other drugs [synonym: {protease inhibitor},
{PI}]

Pi \Pi\ (p[=e]` [imac]"), n. (Chem.)
The inorganic orthophoshate ion; -- a symbol used in
biochemistry. [acronym]
[PJC]


Pi \Pi\ (p[imac]), n. [See {Pica}, {Pie} magpie, service-book.]
(Print.)
A mass of type confusedly mixed or unsorted. [Written also
{pie}.]
[1913 Webster]


Pi \Pi\ (p[imac]), n. [Gr. pi^.]
1. A Greek letter ([Pi], [pi]) corresponding to the Roman
letter {P}.
[Webster 1913 Suppl.]

2. Specifically: (Math.) The letter [pi], [Pi], as used to
denote the number or quotient approximately expressing the
ratio of the circumference of a circle to its diameter;
also, the quotient or the ratio itself. The value of the
quotient pi, to twenty decimal places, is
3.14159265358979323846 (see note). The number pi is an
irrational number, i.e. it cannot be expressed as the
quotient of two integers. It is also a transcendental
number, i.e. it cannot be expressed as a root of an
algebraic equation with a finite number of terms; and from
this fact follows the impossibility of the quadrature of
the circle by purely algebraic processes, or by the aid of
a ruler and compass.
[Webster 1913 Suppl. PJC]

Note: The first 1000 decimal digits of the number pi are as
displayed below.
The digits are arranged as five sets of ten digits per
line in twenty lines, proceeding left to right in each
line.
3.
1415926535 8979323846 2643383279 5028841971 6939937510
5820974944 5923078164 0628620899 8628034825 3421170679
8214808651 3282306647 0938446095 5058223172 5359408128
4811174502 8410270193 8521105559 6446229489 5493038196
4428810975 6659334461 2847564823 3786783165 2712019091
4564856692 3460348610 4543266482 1339360726 0249141273
7245870066 0631558817 4881520920 9628292540 9171536436
7892590360 0113305305 4882046652 1384146951 9415116094
3305727036 5759591953 0921861173 8193261179 3105118548
0744623799 6274956735 1885752724 8912279381 8301194912
9833673362 4406566430 8602139494 6395224737 1907021798
6094370277 0539217176 2931767523 8467481846 7669405132
0005681271 4526356082 7785771342 7577896091 7363717872
1468440901 2249534301 4654958537 1050792279 6892589235
4201995611 2129021960 8640344181 5981362977 4771309960
5187072113 4999999837 2978049951 0597317328 1609631859
5024459455 3469083026 4252230825 3344685035 2619311881
7101000313 7838752886 5875332083 8142061717 7669147303
5982534904 2875546873 1159562863 8823537875 9375195778
1857780532 1712268066 1300192787 6611195909 2164201989
[Webster 1913 Suppl. PJC]


Pi \Pi\, v. t. [imp. & p. p. {Pied}; p. pr. & vb. n. {Pieing}.]
(Print.)
To put into a mixed and disordered condition, as type; to mix
and disarrange the type of; as, to pi a form. [Written also
{pie}.]
[1913 Webster]

76 Moby Thesaurus words for "pi":
ascender, back, ball up, bastard type, beard, belly, bevel,
black letter, body, bollix up, cap, capital, case, compose,
confound, confuse, counter, descender, em, en, face,
fat-faced type, feet, font, foul up, fumble, garble, groove,
impose, italic, jumble, justify, letter, ligature, logotype,
lower case, majuscule, make up, minuscule, mix up, muck up, muddle,
nick, overrun, pi a form, pica, play hob with, point, print,
riffle, roman, sans serif, scramble, screw up, script, set,
set in print, shank, shoulder, shuffle, small cap, small capital,
snafu, snarl up, stamp, stem, tumble, type, type body, type class,
type lice, typecase, typeface, typefounders, typefoundry,
upper case

An interface between {Prolog} {application programs} and the
{X Window System} that aims to be independent from the
{Prolog} {engine}, provided that it has a {Quintus} {foreign
function} interface (e.g. {SICStus} and {YAP}). It is mostly
written in {Prolog} and is divided in two libraries: Edipo -
the lower level interface to the {Xlib} functions; and
Ytoolkit - the higher level user interface toolkit.

{(ftp://ftp.ncc.up.pt/pub/prolog/ytoolkit.tar.Z)}.

E-mail: Ze' Paulo Leal .

(1993-03-02)



安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • 圆周率pi比较著名的无穷级数公式有哪些? - 知乎
    知乎,中文互联网高质量的问答社区和创作者聚集的原创内容平台,于 2011 年 1 月正式上线,以「让人们更好的分享知识、经验和见解,找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容,聚集了中文互联网科技、商业、影视
  • 求介绍下科研项目中的PI? - 知乎
    我倒是可以说说如何做科研PI,最近这几年,慢慢开始带学生、管理一些科研与实验人员,线上与线下的团队,分别都大概有8-10人的规模,不多不少,烦恼刚好。 因为自己本身还得承担部分一线的科研工作,然后还得腾出时间与精力做管理、统筹、协调分工,还得时不时面对学生制造的低级错误而
  • 怎么理解PH<PI——蛋白质带正电荷PH>PI——蛋白质带负电荷,如何分析呢? - 知乎
    当溶液pH小于蛋白质PI时,蛋白质质子化带正电;当溶液pH大于蛋白质PI时,蛋白质释放质子带负电;在某一pH溶液时,蛋白质解离成阳离子和阴离子的趋势及程度相同,所带静电荷为0,溶液呈电中性,则这一溶液的pH为蛋白质的等电点。
  • 电机控制中经常用到pi调节器,请问pi调节器作用是什么,工作原理是怎样的? - 知乎
    图2 PI电流调节器的输出 由图2可知,dq轴输出的电流和理论一致,说明搭建的PI电流调节器可以有效调节电流。 五、 总结 PI电流调节器是矢量控制中的重要模块之一。 矢量控制的控制性能依赖内环PI电流调节器的参数整定,所以对PI电流调节器的设计至关重要。
  • 如何定义一个 PI(principal investigator),才能不至于方差过大? - 知乎
    如何定义一个 PI(principal investigator),才能不至于方差过大? 刚看到 @贱贱 对青年 PI 的定义 [文章: 贱贱实名认证的匿名青年PI群] [图片] 你有哪些补充或修改,你心中的 PI 应该如何定义呢? 显示全部 关注者 64 被浏览
  • 如何查看自己电脑的 IP 地址? - 知乎
    查看自己电脑的ip地址首先要看您是什么电脑? 如果您是windows操作系统的电脑,要在“开始”菜单底下,输入 cmd,打开界面windows Power shell窗口后,输入命令 ipconfig 后,就能查到自己的IP地址。 如果您是苹果ios操作系统的电脑,要在wifi处点击,打开“ 网络偏好设置 ”后,就能看到自己的IP地址了。
  • Inflection AI 推出聊天机器人 Pi,该机器人有何亮点? - 知乎
    搭载Inflection-2 5的Pi聊天机器人,凭借深度的同理心调校,施展出高超的智慧与丰沛的情感,稳步领跑于联网查询前沿。 Inflection AI凭借Pi机器人,已覆盖iOS、安卓与桌面应用等多端,免费向全球用户开放体验。
  • 研究员为什么是principal investigator而不是researcher? - 知乎
    PI为英文”Principal Investigator”一词的缩写,最早出现在欧美科研项目申请中。美国国家科学基金会 (National Science Foundation,简称NSF)定义为”由受让入指定、美国国家自然科学基金委同意的负责项目科学技术方向的个体”,同时指出”这一术语一般用于研究领域”,而另一与其概念相同的术语PD ( Project
  • 如何优雅地证明π³ gt;31? - 知乎
    探讨如何优雅地证明π³大于31的数学问题。
  • 四青 哪个更难,侧重点有不同吗? - 知乎
    四青 哪个更难,侧重点有不同吗? 青年千人、青年长江、青年拔尖、优秀青基。 以及什么条件才能从副教授或PI,开始学术生涯? 显示全部 关注者 419 被浏览





中文字典-英文字典  2005-2009