the need for safety precautions为什么用for而不是用of?

the need for safety precautions为什么用for而不是用of? The springs for safety belts 下面句子如何理解tenure?The safety and security need:This kind of need satisfaction would come from tenure for a college professor. 这个英语句子的for怎么理解?I hope that this accident will underline the need for better safety meatures.这里的for是什么成分?是修饰整个句子还是只跟need有关? 英语翻译list ten ways in which the awareness of the need for safety can be maintained.Do you consider the safety engineer the principal person responsible for your safety?DO you do anything to help him or her?如果无法解答就先帮忙翻译 the AAA Foundation for Traffic Safety是什么组织 英语翻译,for the HFCs for environmental reasons and for the natural refrigerants for safety reasons. 英语翻译I need to ask you,for me to keep buying from you have you all the business and safety documents I require?As I will be dealing a lot with you in the future drive the need for technology Who is responsible for the food safety problem?asked the reporter宾语从句.The reporter asked（）（）responsible for the food safety problem? Who is responsible for the food safety problem?asked the reporter宾语从句The reporter asked（）（）responsible for the food safety problem? the safety of是什么意思 The recent airplance crash_( be aware of)my belief that stronger safety regulations are need.(...The recent airplance crash_( be aware of)my belief that stronger safety regulations are need.(空格中的最适合的短语形式是什么） 求英语高手帮忙翻译 急啊This manual is a safety guide for damowners. The continuing need for damsafety is critical because of the thousandsof dams now in place and the many newones being built each year. Although thesedams are essential el In 1990,it was closed to the public (for safety reasons)对括号里部分提问 Are the Criteria for Health and Safety Available in Adjustable Saudi School Furniture?怎么翻译啊 The firefighters are telling us something ( ) fire safety.A.to B.for C.about The principal dwelled ______ traffic safety in his talka、on b、 in c、 at d、 for