manually operated

基本解释

Prior to the advent of NC, all machine tools were manually operated and controlled.
之前，NC 的到来，所有机器工具手动运行和控制。
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Building valves - Manually operated copper alloy and stainless steel ball valves for potable water supply in buildings - Tests and requirements.
建筑物用阀。建筑物内饮用水给水用手动铜合金和不锈钢球阀。试验和要求。
This type of coordinate indexing is said to be manually operated, since the recording of the accession number onto the features card is done by hand.
这种类型组配被称为是人工操作的，因为在特征卡上写登记号是用手写的。
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San Francisco remains the only place on the planet with a true, manually operated cable-car system serving the public.
NPR: San Francisco Cable Car Accidents Costs Millions
By the time she was 30, Al-Tunisi was modernizing the Abqaiq oil processing plant in part by replacing thousands of manually operated valves with electric ones.
FORBES: Magazine Article