The indoor toxicity and field protection effect of two complex agent and other bio-insecticide were compared.

两种复配剂与其它生物杀虫剂室内毒力和田间防效比较。

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The main methods used to reduce ELFE include electromagnetic field protection technology, driven shaft earthing system, drive shaft earthing system and electric field counteracting system.

电磁场防护结构工艺、被动轴接地系统、主动轴接地系统和电场抵消系统是目前降低舰船极低频电场的主要方法。

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Norway awards the Rachel Carson Prize to women who have made great contributions to the field of environmental protection.

挪威为在环境保护领域做出巨大贡献的女性授予雷切尔·卡森奖。

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However, Prof Lin Field, head of crop protection at Rothamsted Research, said she was pleased with the outcome of the vote.

BBC: Bee deaths: EU delays action on pesticides ban

This includes protection in the field of literary, scientific and artistic works, including writings, musical, dramatic and cinematographic works, and paintings, engravings and sculpture.

UNESCO: UK National Commission for UNESCO - UNESCO Conventions, Recommendations & Declarations in the UK

We can all agree that Vick will be safer on the field with this added layer of protection.

FORBES: Vick Gets Military-Grade Jacket Guaranteed to Prevent Injury