英语翻译how much do you need to increase the nitrogen concentrat

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/11 05:26:58

英语翻译
how much do you need to increase the nitrogen concentration to affect a nine-fold increase in reaction rate.
特别是nine-fold是什么意思,怎么查也查不到,急,
为什么nine-fold就是9倍的意思呢，fold没有倍数的意思啊，

nine-fold有两个意思
1 :being nine times as great or as many 九倍于...
2 :having nine units or members 有9个单元或者成员
这句话就是：你需要把氮浓度增大多少来获得九倍于原来的反应速率
针对你的补充问题：
你说的对,单独的fold词的解释没有倍数的意思,但是它放在数词后面就做倍数解释词典中是可以查到的你在fold前面输入“-” 这样就可以查到点击我的参考资料可以看到
-fold
suf.
[置于数词后]表示“倍,重”,如:fivefold,manifold,hundredfold
说明：表示倍数的词通常用 -ple,-ble 等拉丁后缀
PS：得到你的分数我就升级到5级了

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