低标中标
Successful bid at a low offer
二坐标中子衍射仪
two-coordinate neutron diffractometer
铅中间标准溶液
lead-midst standard solution
中间中继站
intermediate repeater station
中间中心局
averaged central difference
中间中转点
intermediate transit point
中间纵桁
intermediate longitudinal
中间纵向构架
intermediate longitudinal frame