D . When specified , gaskets of other materials are available as an option.作为备选件, 如果用户要求, 也可提供其它材料的垫圈.Daphne was so guileless that Claire had no option but to believe her.达夫妮如此忠厚老实，克莱尔对她的话也只有信以为真了。The regime at Latchmere...
This text surrounds that problem, makes some accidence and system discussion.本文围绕该问题作了一些初步的、系统的认识和探讨.I have learnt some knowledge of it in accidence.我初步学会了关于它的一些知识.Medical factors cause the accidence of MOF also.医源性因素也参与...