很多对关节病有效果的药品主要含有利尿的功效。

Many remedies effective in joint disease are primarily diuretic.

《柯林斯英汉双解大词典》

高速公路隔声屏障作为一种经济有效的方法，是降低交通噪声的主要措施。

As an economical and effective method, the expressway noise barrier is a primary measure to reduce traffic noise.

youdao

虽然它们听起来很高效而且节约成本，但最近的一项研究表明，它们并不有效，主要是因为抑郁症患者与之接触的可能性低，也难以坚持下去。

While they sound efficient and cost-saving, a recent study reports that they are not effective, primarily because depressed patients are not likely to engage with them or stick with them.

youdao

z So the main idea here is z effective is not z, so don't try to plug one in for the other, they're absolutely different quantities in any case when we're not talking about a 1 electron atom.

所以这里主要的观点是有效的z不同于，所以不要尝试将一个插入到另一个，当我们不在讨论1个电子的原子时,它们在任何情况下是绝对不同的量子数。

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