保护: protect; defend; guard; safe ...继电器: electric relay; relay的: 4次方是 The fourth power of 2 i ...结构: structure; composition; cons ...型: mould; model式: type; style与: take part in; participate in基本: basic; fundamental尺寸: measurement; dimensions; siz ...系列: succession; series; bank; se ...型式与基本尺寸: axial-flow pumof medium-small size-types and basic parameters结构型式和基本尺寸: rolling bearings with helically wound cylindrical rollers-types and basic dimensions铁道车辆用车轴型式与基本尺寸: axles for railway cars types and basic dimensionss插件的基本尺寸系列: series of basic dimensions of subracks and plugin units for vertical increment of 45mmm架和柜的基本尺寸系列: series of basic dimensions of panels rack and cabinets for vertical increment of 20mm仪器推车基本尺寸系列: series of basic dimensions of trolleys for instruments保护继电器: keerelay; protect relay; protection relay; protective relay; short circuit relay型式与基本参数: open front mechanical power presses-types and basic parameters电子设备台式机箱基本尺寸系列: series of basic dimensions of cases for electronic equipment机架和机柜的基本尺寸系列: series of basic dimensions of panels racks and enclosures for vertical increment of 45mm场保护继电器: field protective relay热保护继电器: hot protective relay; thermoprotection relay型式和基本尺寸: rectangular shanks for broaches--types and main dimensions; rectangular shanks for broaches-types and main dimensions单螺杆泵型式与基本参数: types and basic parameters of single screw pumps三螺杆泵型式与基本参数: types and basic parameters of three screw pumps