| 单词 | jolt ramming | 
| 释义 | > as lemmasjolt ramming   jolt ramming  n. Founding a method of packing the sand around a pattern in which the moulding box, pattern, and sand are repeatedly lifted by machine and allowed to fall; frequently attributive. ΘΚΠ society > occupation and work > industry > working with specific materials > working with metal > 			[noun]		 > founding or casting > specific processes involved in rapping1851 false coring1866 sweeping1902 jar ramming1909 jolt ramming1909 jolt-squeeze1931 shell-moulding1951 1909    Iron Age LXXXIV. 1165/1  				Today we have pneumatic jolt-ramming machines in successful service with lifting capacities from 10 to 15 tons. 1909    Iron Age LXXXIV. 1165/2  				How to adapt our foundry methods to this new principle of jolt-ramming green sand molds. 1926    Jrnl. Iron & Steel Inst. 113 568  				The whole of the mould and core are rammed on a Mumford jolt ramming machine. 1950    J. S. Campbell Casting & Forming Processes xii. 104  				Jolt ramming packs the lower portions of the sand next to the pattern best. < as lemmas | 
| 随便看 | 
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。