It is an effective approach to breed the resistance cultivars of seedless grape by transferring resistant gene into the cultivars of Vitis vinifera.

将抗性基因转入葡萄品种是培育无核葡萄抗病品种的有效途径。

youdao

We have seen problems only in cases where the partner drug was previously used on its own and is no longer effective due to resistance.

我们注意到，只在配对药物单独使用而且现在由于存在耐药性而不再有效的情况下，才会出现问题。

youdao

This failure is due to resistance to artemisinin, our best and last class of effective antimalarials.

这是因为对最佳，也是最后一类有效抗疟药——青蒿素，产生耐药性所导致的失败。

youdao

He says many don't even have the active ingredients in them. There is a tendency to treat all fevers as malaria in West Africa,and resistance to otherwise effective treatments, like cloroquine, has become a problem.

VOA: standard.2009.04.25

But in England, the tradition of freedom and government bound by law was already strong enough to produce effective resistance.

但是在英国,自由传统和法制政府,使得自由得以很好的保护

耶鲁公开课 - 古希腊历史简介课程节选

Epothilone has the potential to be even more effective against taxane resistance because it has a different chemical structure that may let it bind better with microtubules.

FORBES: Taxol's Next Stand

Even if they are effective, vaccines may face stiff resistance from parents who are urged to let their 11-year-old daughter or son get a shot against a sexually transmitted disease.

FORBES: Cornering A Killer

Even if they are effective, vaccines may face stiff resistance from parents who are urged to let their 11-year-old daughter get a shot against a sexually transmitted disease or told that their son needs one for a disease that is likely never to harm him.

FORBES: Cornering A Killer