词汇精选：equivalent的用法和辨析
一、详细释义：
adj.
相等的，相同的(+to)
例句：
Women are usually paid less than men when doing equivalent work.
通常做相等的工作女性比男性的报酬少。
例句：
Changing his job like that is equivalent to giving him the sack.
那样调换他的工作等于是解雇了他。
等价的，等值的；等量的；等效的(+to)
例句：
He changed his pounds for an equivalent amount of dollars.
他把英镑换成了等值的美金。
例句：
It turns out that there are a number of equivalent ways in which this can be done.
事实证明做这件事有好几种等效的方法。
同意义的
例句：
That is perfectly equivalent and equally unambiguous statement.
这是完全同意义的，毫不含糊的论述。
例句：
They are equivalent in the sense that they arise from the same set of equations.
从它们都是由同一个方程组产生的这一意义上来看，它们自然是等价的。
【化】等价的
例句：
Scientists have found the antimatter equivalent of helium.
科学家们发现了反氦——与氦等价的反物质。
例句：
In this paper, a calculation method of quantum coherence for systems consisting of containing equivalent spins is suggested.
本文给出了含等价核的自旋体系量子相干的计算方法。
【数】等面积的，等体积的
例句：
This triangle and the rectangle are equivalent though in different shapes.
这个三角形和这矩形尽管形状不同但却是等面积的。
n.
相等物；等价物(+of/ to) [C]
例句：
Mr. Wang's pay is the equivalent of about $40000 a year.
王先生的报酬大约等于每年40000美元。
例句：
Is there a French word that is the exact equivalent of the English word "home"?
法语中有没有和英语"home"完全一样的对应词?
同义字(+of/ for) [C]
例句：
Good is a equivalent of nice.
Good和nice是同义词。
例句：
This word is a equivalent for that one in your book.
这个词和你书上那个是同义词。
【化】【物】当量 [C]
例句：
The first law tells us that work output cannot be produced without an equivalent amount of energy input.
第一定律告诉我们，如果没有等当量的能量输入，就不可能产生输出功。
例句：
The raw cotton equivalent of imported textiles was 1.8 million bales in 1978.
1978年进口的原棉当量为一百八十万包。
二、词义辨析：
equal,equivalent
这两个形容词均有“相等的”之意equal指几个物或事在数目、数量、重量、程度或价值等方面完全相等。equivalent指几个物或事彼此对等，或者具有同等的价值、效果或意义等。
三、相关短语：
equivalent weight
等效重量，当量
law of equivalent proportions
当量比例定律
cash equivalent
【经】 视同库存现金, 抵作库存现金
四、参考例句：
But they are not equivalent.
但它们并非是是等效的。
A dime is equivalent to ten pennies.
一角等于十分。
His reply is equivalent to a refusal.
他的回答等于是拒绝。
Silence is sometimes equivalent to an allowance.
缄默有时等于允许。
A meter is equivalent to 39.37 inches.
一米相当于三十九点三七英寸。
Good is a equivalent of nice.
Good和nice是同义词。
That is perfectly equivalent, and equally unambiguous statement.
这是完全相同的，毫不含糊的论述。
He changed his pounds for an equivalent amount of dollars.
他把英镑换成了等值的美金。
Returns true if two compared objects are equivalent, false otherwise.
如果两个相比较的对象等同，则返回true，否则返回false。
That is perfectly equivalent and equally unambiguous statement.
这是完全同意义的，毫不含糊的论述。
