与媒介染料相比,用活性染料对拉细羊毛染色可获得更好的效果.Reactive dyes exhibited better dyeing properties than mordant dyes on attenuated wool.摘要研究澳大利亚半细羊毛和细旦涤纶纤维混纺工艺技术.Blending technology of Australian medium wools and fine denier polyester fibers...
When the Berlin Wall came down it wasn't just the roads that opened up but the waterways too.柏林墙一倒，不仅是陆路，连水路也开通了。The city is intersected by three main waterways.该城市由3条主要水路贯穿。On the other hand, federal regulation has...
Gear lubricants may congeal and channel in cold weather.天气冷时齿轮润滑油可能凝结而形成凹槽.In order to assess the friction of lubricants on multifilament yarns , finish - free yarns are required.为了评定润滑剂对复丝纱摩擦所起的作用, 要求用不带整理剂的纱作试验.Acting ...