spec. Of a telephone exchange or system: having a central switchboard operated by hand.
| 单词 | θ213845 |
| 释义 | society > occupation and work > equipment > machine > types of machine generally > [adjective] > operated by hand or foot (4) manual1921 spec. Of a telephone exchange or system: having a central switchboard operated by hand. manually operated1921 operated by hand, non-automatic. step-on1945 that may be operated by pressure of the foot. offhand1966 Engineering. Of an operation: carried out with the workpiece held in the hand. Of a machine: intended for operations carried out with the workpiece… |
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