辅锅炉 ( 废气锅炉 ) 装船后气密试验.Air tightness test for auxiliary boiler ( economize boiler ) on board.在独特的双结构内, 采用了一种特殊的液体, 并实现气密般的真空密封.A special liquid, hermetically vacuum - sealed, is employed in a unique duplex design.高强度嵌合式套头,...
他们会透过那扇经受风吹日晒的老木门的缝隙向外张望。They would look out through the cracks of their weather-beaten door.除草剪刀；专门用于修剪缝隙角落里的青草。Grass shears are specially made to trim grass growing in awkward places.他透过帘子之间的缝隙偷看。He peered through a ch...
All these measures were calculated to prevent water-logging by rainstorm or mountain torrents.这些措施都是为了预防暴雨或山洪造成的涝灾。All these measures were calculated to prevent water - logging by rainstorm or mountain torrents.这些措施都是为了预...
The clone anergy and clone deletion are considered as the major theories of the immunotolerance mechanism.以往观点认为,T细胞 免疫耐受机制主要有克隆无能和克隆删除两种学说.This involved the deletion of a great deal of irrelevant material.这包括删除很大一部分不相关的...