18、化学清洗pumice power浮石粉/火山灰sand blast ing喷砂deburri ng去披峰/去毛刺mecha ni cal polishi ng机械抛光chemical polishi ng化学抛光electropolish ing电抛光etcha nt蚀刻剂/蚀刻液un der etch侧蚀microetch微蚀over etchi ng过腐蚀stripper剥离液bright dip浸亮4.5电镀和涂覆Plat ing镀覆electrochemistry电...
即四个线) of a bipolar(双极性) stepper motoror bidirectionally(直接地) control twoDCmotors. The L6219 with a few external components form a complete control and drive circuit for LS-TTL or microprocessor controlledstepper motor system
While through-hole parts have many disadvantages, THT parts are still widely desired where additional mechanical strength is required, such as large and heavy parts (e.g. power electronics) or parts that require greater durability such as user-accessible connectors that need to withstand repeated pl...
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Press the Spacebar to change between Free-form and Polyline modes. Hold the Ctrl key while using the Lasso Select, Inside Area, Outside Area, Touching Line or Touching Rectangle command to target the primitives of a component object.
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or both. This arrangement also means the machine is a lot more compact than a conventional XY-table and can be packed away when not in use. The base is held firmly in place on the workbench with a set of suction cups or screws. Power is provided through the fixed base using a slip-...
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