differential chain hoist 差动链式起重机 ; 差动倒链 ; 差动链式吊车
differential chain block 差动绞辘 ; 差速吊车 ; 差动滑车
differential chain tackle 差动链滑车
Differential Chain Production Line 差速链生产线
Differential polymerase chain reaction 差别PCR ; 差异聚合酶链反应
differential display polymerase chain reaction 差异显示pcr ; 差异显示聚合酶链反应 ; 差异表达显示技术
roller chain differential drive [机] 滚子链差速传动
Differential chain: is the way many logistics conveyor equipment best choice.
差速链：是众多物流输送装备方式中的最佳选择。
This machine is driven by nylon roller differential chain and made by aluminum profiles, beautiful in appearance.
本机采用尼龙滚子差速链牵引，铝合金型材机身，外型美观实用。
It compares the pilot distance protection with power line carrier (PLC) in the single or double frequency and the differential protection with optical fiber in the loop or chain connection.
比较单频率与双频率载波通道的纵联距离保护和环状与链状连接光纤通道的差动保护方案。
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