p开头的英文单词七个字母第四个是t,第六个是o

Question

如题所述

Answer 1

paction n.契约，合同，协议书
platoon n.排，一组，一群人
pontoon n.浮桥,浮筒,二十一点,潜水箱
portion n.一部分；一分
postbox n. 邮箱

Answer 2

paction

名词，指契约、合同、协议书的意思。例句如下：
Tests discover that anti-segregability agent can control the concrete's cohesion in transporta-tion. The paper introduces the development, performance and application of the additive for premixed self-com-paction concrete.
通过试验发现，抗离析剂能控制预拌自密实混凝土在运输过程中粘聚性的下降，着重介绍预拌自密实混凝土外加剂的研制、性能及工程应用情况。本回答被网友采纳