companydirectorylist.com  Global Business Directories and Company Directories
Search Business,Company,Industry :


Country Lists
USA Company Directories
Canada Business Lists
Australia Business Directories
France Company Lists
Italy Company Lists
Spain Company Directories
Switzerland Business Lists
Austria Company Directories
Belgium Business Directories
Hong Kong Company Lists
China Business Lists
Taiwan Company Lists
United Arab Emirates Company Directories


Industry Catalogs
USA Industry Directories














  • abbreviations - Usage of p. versus pp. versus pg. to denote page . . .
    The correct forms are p for a single page, and pp for a range In many cases, actually, you don't need any of them Quite commonly you'll find references in the form volume:page(s), like 5:204 or 8:99–108 (or, for works of a single volume, something like Blah Blah Blah 108)
  • latin - Conventions of abbreviations of pages (pp. ), for academic . . .
    120 pp, 10 figures instead of, 120 pages, 10 figures It looks to me that from Usage of "p " versus "pp " versus "pg " to denote page numbers and page ranges, the pp actually stands for the range of pages, say pp 10-12 means the page 10 to the page 12 However, is it nd safe totally acceptable to write 120 pp to mean the 120 pages?
  • PP 塑料和 PE 塑料有什么不同? - 知乎
    Pp,主要成分是聚丙烯 PE,主要成分是聚乙烯 Pp的强度,刚度,硬度优于聚乙烯,可在100摄氏度使用具有良好的介电性能,胶频绝缘性且不受湿度影响,但低温时变脆不耐磨易老化,PE延伸性抗撕裂性耐冲击性好,透明度较高,热风性,加工性能好。
  • PCB中两层板中间介质是core还是pp? - 知乎
    不是core,是固化了的pp 什么是core?core也叫覆铜板、基板、芯板等,由两张铜箔夹着固化了的pp组成。 core就像个汉堡,上下两层铜箔就是上下的两块面包,汉堡中间的夹心就是固化了的pp。
  • pp材质的性能和分类是什么? - 知乎
    pp是安全的食品容器用塑胶,但若老化就不安全,例如台湾就有热水器内pp塑胶老化的先例。 由于侧甲基连接的主碳链骨架碳原子是一级碳原子,使PP更易受氧攻击而氧化,且在铜的作用下降解速率急剧减小。
  • pp 材料和 pvc 材料的区别有哪些? - 知乎
    pp手感较硬,pvc相对柔软。最好的测试办法是用明火对这两种材料燃烧,有黑色灰尘状的就是pvc,而pp则没有。从气味上也可以区别,pvc有呛味,而pp则是无味。 第三,pp材料不能做透明的,常用颜色为原色(pp材质的自然色)、米灰色、瓷白、乳白等。
  • PP vs Was - English Language Usage Stack Exchange
    A passive verb needs to have [to be] before the main verb (which should be in past participle form) 'has been' and 'was' are both forms of [to be], thus both sentences are grammatically correct
  • pp 和 pe 材质有什么不同之处? - 知乎
    pp和pe原材料有以下区别 1、两者熔点不一样,pp熔点在155-170℃,pe熔点120-140之间,主要是不同pp和pe种类造成的; 2、力学性能性能区别很大,pp拉伸和弯曲强度远高于pe,pp表面硬度比pe要高;pe柔韧性通常比pp要好;




Business Directories,Company Directories
Business Directories,Company Directories copyright ©2005-2012 
disclaimer