Coupling half 1-1/2NPT 3000PSI ASTM 105CS 特别是1-1/2NPT

Coupling half 1-1/2NPT 3000PSI ASTM 105CS 特别是1-1/2NPT 1/2 NPT class 3000 forged steel threaded coupling是什么意思1-1/2 NPT class 3000 forged steel threaded coupling呢? NPT 1/4' full coupling 是什么东西?具体尺寸是多少啊?最好能给图的. C语言的一道提void primenum(int m,int k,int array[]){ int value = m+1;int half,n = 0,i;while(1){ half = value/2;for (i=2; i half){ array[n] = value;n++;}if (n >= k)break;value++;}}这个是求数字m之后k个素数的程序,我就不是很明 英语翻译本公司能够来图来样加工各种式样的分度端齿盘,可以订做各种型号的端齿盘、等分回转工作台.分度精度：3,重复精度：1.分度端齿盘：dividing face gear coupling端齿盘：face gear coupling payment coupling coupLing tool coupling half threaded M16,M20 and M24 and half drilled to 16.2+0.3,20.2+0.3 and 24.2+0.3 m管件英文 half a与a half的区别We need 1/2 teaspoon vegetable oil.上句中,如果把1/2用文字表达,是half a teaspoon 还是a half teaspoon,这两个有什么区别? 英语翻译这边有几个句子和短语,来自某机械说明书上1、If a certain make of flexible coupling has to be used,the following data of it must be informed2、A turning gear with a capability of turning a higher external torque may be n 1-7''Flow coupling,thread:7''29 PPF NEW VAM ,L80Type I Box*Box.Leagth:20ft石油套管 这是什么 不懂 your walking shoes should be a size to a size and a half larger than your dress shoes.4565 求全句翻译.想知道的语言点：1—size to a size and a half larger 怎么翻译?2— should be +n 表示推测吗? 1年半 用英语怎么说a year and a half?a years and a half?one and a half years?还是什么别的 麻烦2种都写下实在没分了 英语翻译1、The heterodyne receiver architecture was ruled out due to the need of off-chip image rejection filters which opposes the goal of a low-cost application where direct antenna coupling is preferred.2、A traditional RF front-end consists coupling sleeve是什么意思 spacer coupling是什么意思 reducing coupling是什么意思 spin-spin coupling是什么意思