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...
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...
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....