beta

名词 beta:

1. the 2nd letter of the Greek alphabet
2. beets
   同义词：genus Beta

形容词 beta:

1. second in order of importance
2. preliminary or testing stage of a software or hardware product

1. A beta ray.
   β射线

be.ta

n.（名词）
The second letter of the Greek alphabet.See table at alphabet
β：希腊语的第二个字母参见 alphabet
The second item in a series or system of classification.
第二个，次级：在一系列类别中处于第二位的东西
A mathematical measure of the sensitivity of rates of return on a portfolio or a given stock compared with rates of return on the market as a whole. A high degree of such sensitivity indicates moderate or high price volatility.
证券的β因素：一种数学手段，对某有价证券或某种给定股票的回报率与整个市场回报率相比的敏感性进行测量。这种高程度敏感性表明其价位处于中度或高度易变状态
Physics
【物理学】
A beta particle.
β粒子
A beta ray.
β射线
Chemistry
【化学】
The second position from a designated carbon atom in an organic molecule at which an atom or a radical may be substituted.
第二位，β位：有机物分子结构中位于距指定碳原子的第二个位置，在此位置上原子或原子团可被取代
An isomeric variation of a chemical compound. Used in combination:
一种化合物中的异构体。用于化合作用：
例句：
beta-estradiol.
β-雌二酮

来源：
Greek bôta
希腊语 bôta
from Canaanite bêt [house] * see beth
源自 迦南语 bêt [房子] *参见 beth