Lets you roll multiple dice like 2 D20s, or 3 D20s. Add, remove or set numbers of dice to roll. Roll the dice multiple times. You can choose to see only the last roll of dice. Display sum/total of the dice thrown. You can choose to see totals only. In technical terms this …

2是管道的承压能力等级，也就是承压在16公斤等级的意思，通俗的说就是热水管 D20*2。 8 这里D是个字符，代号，没什么实质意思；20是指管材的外径，也就是说管材的口径大小；2。

faz-d20/2 Eaton’s mission is to improve the quality of life and the environment through the use of power management technologies and services. We provide sustainable solutions that help our customers effectively manage electrical, hydraulic, and mechanical power – more safely, more efficiently, and more reliably.

FAZ-D20/2-RT-L – Circuit Breaker Thermal Magnetic 20A 480 V AC 96 V DC Lever DIN Rail from Eaton Electrical. Pricing and Availability on millions of electronic components from Digi-Key Electronics.

一般来说，管子的直径可以分为 外径 （De）， 内径 （D）， 公称直径 （DN）。 下面来给大家区分区分这些"De、D、DN"的区别。 DN是指管道的公称直径. 注意：这既不是外径也不是内径；应该与管道工程发展初期与英制单位有关；通常用来描述镀锌钢管，它与英制单位的对应关系如下： 当设计均用公称直径DN表示管径时，应有公称直径DN与相应产品规格对照表。 水、煤气输送钢管（镀锌钢管或者非镀锌钢管）、 铸铁管 、 钢塑复合管 和聚氯乙烯（PVC）管等管材，应标注 …

We've got the history lesson out of the way, so let's bring the focus to our star player – the D20 Dice Roller. What's the deal with D20 roller, you ask? It's a virtual avatar of the physical D20 die specially designed from classic dice roller, perfectly modeled to maintain the essence and functionality of its physical counterpart. The best part?

地暖管型号: DN20*2.0什么意思?地暖管材， 规格， 一般会用2种方式表述。第一种， 就如题DN20*2.0， DN 是英文单词diameter 缩写， 20指的管材的外径， 单位MM， 2.0 是壁厚 第二种表述方式， DN20*16mm, 是指外径

This virtual dice roller lets you roll2 dice with D20 faces. You can use it for any purpose you want, whether you are playing a game, making a decision, or just want to see what the dice have in store for you.

What is the d20 system? The d20 system was created by game designer Dave Arneson, and it was first published in 1974. It has become the most common way to resolve a variety of actions in role-playing games.