loose contact

基本解释

Expansion facilities shall be of effective expansion and contraction function; no chokes, seepage, loose contact and cracks shall exist at expansion joints.
伸缩装置应有效，无阻塞、渗漏、松脱和开裂现象。
Light microscopic evaluation(HE staining)showed that PMMA was in loose contact with the bone trabecula, PMMA could not be resorbed, and new bone could not be found.
HE染色光镜观察：PMMA与骨小梁松散结合，界限明显，未见PMMA吸收和新生骨形成；
The general failure model and mechanism of circuit break, loose contact, instant break, male insulation, short-circuit, false matching, poor fix and bad seal were discussed.
阐述了断路、接触不良、瞬断、绝缘不良、短路、误配线、固定不良和密封不良等常见失效模式和失效机理。