These composite materials have superiorities in size stability, formability, stretching resistance and impact resistance.这种复合材料在尺寸稳定性 、 成型性 、 抗张力和抗冲击方面均具优势.The experimental parameters are optimized, and the results analy...
Management is confident about the way business is progressing.管理层对业务发展的态势充满信心。Soon they found their scientific reseaches were not progressing smoothly.不久他们发现他们的科学研究工作进展得并不顺利.The work is progressing steadily.工作在稳步地取得进展....
Plumbers caulk joints in pipe with lead, string or a caulking compound.管子工用铅 、 绳子或专用填隙材料使管子的接头不漏水.Older windows and doors require maintenance -- scraping, painting and caulking.旧门窗需要一系列维护,诸如, 刮磨, 上漆,勾缝.Caulking and weath...