保护寿命

protective layer───[植]保护层

protective role───保护作用

protective effect───保护效应；防护作用

protective tariff───保护性关税；保护性税则

protective gear───保护装置

protectively───adv.保护地；防护地

protective tariffs───保护性关税

protective shield───[铁路]防护屏；防护板

protect wildlife───保护野生动物

Some small studies in the past have shown that specific vitamins, not multivitamins, may be protective against heart disease or cancer later in life.───过去的一些小型研究表明，一些特定的维生素，而不是复合维生素，可能会保护人们，使人们在晚年生活中不至于患上心脏病或癌症。

Despite a high profile, however, he has remained fiercely protective of his private life.───尽管享有盛誉，但是他严密保护他的隐私生活。

Such nightmares would help organisms hone their avoidance skills in a protective environment, and ideally prepare organisms for a real-life situation.───这样的噩梦将帮助生物在安全环境中磨炼他们的躲避能力，并让生物为真实情况做最好的准备。

Experimental results show that the composite coating has excellent corrosion resistance, and its protective life is over 10 years.───试验结果表明，复合涂层具有良好的耐腐蚀性能，其防护寿命可达10年以上。

Every living thing has a protective life preserving mechanism.───每一个生物有一个保护生命的保护机制。

Utmost Protective Life of Arc Spray Al Coating and Large Area Long Term Anti-corrosion for Steel Box Girder Bridge───电弧喷铝涂层的保护极限及钢箱梁桥大面积长效防腐