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pam
英:
美:
常用释义:
脉冲幅度调制
abbr.脉冲幅度调制
n.(Pam)人名;(英、尼日利)帕姆
n.梅花J
1、To which Pam simply shook her head and said, "You are such a disappointment to me. "───对他的话帕姆只是摇摇头,说,“你真叫我失望。”
2、He wants her to make the call to have her people protect Pam before he hands over Scylla, but she insists he hand it over first.───在交给克里斯蒂娜“锡拉”前,他想她帮忙打电话,叫她的手下保护帕姆。但克里斯蒂娜坚持要他先交出“锡拉”。
3、If PAM encounters an error when running the
pam
_namespace. so module, the login session for the user trying to login will fail.───如果在运行
pam
_namespace.so模块时PAM遇到错误,尝试登录的用户的登录会话将会失败。
4、After a three-weekend courtship, Pam accepted Randys proposal of marriage.───经过一段为期3个周末的恋爱,帕姆接受了兰迪的求婚。
5、AIX currently provides some PAM service modules, these provides at least one of module type described as above.───AIX目前提供了一些PAM服务模块,至少提供了上述这些模块类型中的一种。
6、Pam had never learned that there were men who preyed on young runaways.───帕姆从未了解到有些人专门坑害那些年轻的离家出走者。
7、Pam decided to call it a night after dancing for five hours .───潘跳了五个小时的舞后,决定今晚到此为止。
8、The wastewater from medium-sized and small-sized papermaking plants is often treated with PAC coagulant and PAM flocculant.───中小造纸厂废水处理常用PAC作混凝剂,PAM作助凝剂。
9、chagrin of their parents, neither Phil nor Pam went to church anymore.───父母失望的是,菲尔和帕姆都再也不去教堂了。
聚丙烯酰胺(PAM)是由丙烯酰胺(AM)单体经自由基引发聚合而成的水溶性线性高分子聚合物,具有良好的絮凝性,可以降低液体之间的摩擦阻力,按离子特性分可分为非离子、阴离子、阳离子和两性型四种类型。聚丙烯酰胺的作用特点:
1、絮凝性。
PAM能使悬浮物质通过电中和,起到絮凝作用2、粘合性。
可以通过物理的化学作用等起到粘合作用3、增稠剂。
在中性和酸性条件下都有增稠作用,如果PH值在10以上PAM容易水解。