These shapes have proved to be the most effective in preventing a surface from misting over.

现已经证明这些形状在防止表面起雾上最为有效。

youdao

Routine cleaning and disinfection of horse stables is expected to be effective in preventing infection.

常规清洁马厩并进行消毒预计可有效预防感染。

youdao

This two-drug regimen is most effective in preventing nausea and vomiting in the first 24 hours after chemotherapy.

这种双重药物疗法抑制恶心与呕吐的最佳疗效时间为化疗后的24小时。

youdao

Some medicines are generally effective in preventing and treating malaria.

VOA: special.2009.05.26

So far it has proven effective at preventing the disease in half of those vaccinated which is more than ever before.

VOA: special.2009.12.07

The vaccine has already proven effective at preventing the disease in half of those vaccinated which is more than ever before.

VOA: special.2009.12.22

The target here, Lipitor, not only reduces bad cholesterol but also is effective in preventing strokes.

FORBES: Magazine Article

Access to clean water and good hygiene practices are extremely effective in preventing childhood diarrhoea.

BBC: Move to cut child diarrhoea death

But have they been effective in preventing those most vulnerable from becoming gambling addicts?

BBC: NEWS | Programmes | Documentary Archive | Place Your Bets