《房委会升降机及自动梯承办商名册》
Housing Authority List of Lift and Escalator Contractors
《升降机及电楼梯安全使用守则》
Code of Practice for Safe Use of Lifts and Escalators
C型臂X线机升降系统
C-arm lift system of X-ray
HDPE升降式网箱
submersible sea cage of HDPE frames
冰川性海面升降说
theory of glacial eustasy