non-essential amino acid [生化] 非必需氨基酸
non-essential stipulation 非主要条件 ; 非主要条款
non-essential color 假色 ; 他色
non-essential 非必需的 ; 非本质的 ; 非必须的 ; 不重要的
non-essential fatty acid [生化] 非必需脂肪酸
non-essential reservoir 非主要储层
non-essential document 不必要文件
non essential amino acid 非必需氨基酸
同义词： inessential
"nonessential to the integral meanings of poetry"
同义词： incidental
以上来源于: WordNet
also non-essential
ADJ Nonessential means not absolutely necessary. 非必要的 [usu ADJ n]
The crisis has led to the closure of a number of nonessential government services.
这场危机已导致了一些可有可无政府服务设施的关闭。
...non-essential goods.
...非必需品。
N-PLURAL Nonessentials are things that are not absolutely necessary. 非必需品
In a recession, consumers could be expected to cut down on nonessentials like toys.
经济衰退时，消费者有可能会缩减玩具等非必需品的消费。
In February, spending on non-essential stuff was up an inflation-adjusted 3.3% from a year earlier, compared to 2.4% for essential stuff such as food, housing and medicine.
2月份，通胀调整后得出的非必需品消费额比去年增长了3.3%，相比食品、住房和医疗支出只增长了2.4%。
As a result, many countries have an abundance of expensive, non-essential medicines amidst a shortage of essential medicines.
众多国家因此在基本药物短缺的情况下，却拥有大量昂贵的非基本药物。
But it turns out the environment is very critical for this, and you can only define an essential or non-essential gene based on exactly what's in the environment.
但是，环境对此的影响非常关键，我们只能根据环境中确实存在的条件来定义必需或非必需的基因。
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