概念的英文：
concept
an idea
a general idea of
a notion
conception;
a construct

参考例句：

Empty concept
空概念

1. Portfolio Theory
1.投资组合概念

The accounting entity concept
会计主体概念

Accounting Concepts and Principles
会计概念与原则

Convey a notion of comparison
表达比较的概念

The most basic concept in accounting is that of the entity.
会计最基本的概念就是主体。

The idea that energy is conserved is the first law of thermodynamics.
能量守恒这一概念是热力学的第一定律。

Notice that the concept of earnings per share applies only to common stock.
需注意,每股收益的概念只适用于普通股。

The concept of a continuous spectrum is obviously unmanageable graphically
连续谱的概念显然用图形无法表达。

The theory of relativity is concerned with two seemingly opposite ideas, relativity and invariance
相对论涉及两个似乎对立的概念，相对性和不变性。

concept是什么意思：
n. 概念，观念，思想

distribution of concept
概念的周延

It was an idyllic conception.
这是一种牧歌式的构想。

The conception of the United Nations was in 1945.
联合国创始于一九四五年。

idea是什么意思：
n. 思想，概念；意见，见解；主意；想法

interchange ideas
交换意见,2. 使互相易位,3. 使交替发生,轮流进行,vi.1. 交换位置;交替发生[(+with)]

This is a slant idea.
这是个有偏见的想法。

At this moment an idea burst upon him—a glorious idea.
此刻他突然产生一个想法，一个十分美妙的想法。

general是什么意思：
adj. 普遍的，全体的；正常的；大致的，笼统的
n. 将军

generalized ensemble
广义系综

general average
共同海损

The steam can generate electricity by turning an electric generator.
蒸汽可以转动发电机发电。