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 ...
His blood pressure tended to stabilize.他的血压趋向稳定.The use of dopamine and dobutamine postoperation can improve cardiac function and stabilize blood pressure.术后用多巴胺和多巴酚丁胺能改善心功能,稳定血压.We can use both calcium carbide dust and ...