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| 記述事項: | Industry today is becoming more and more equipped with machinery and appliances to do the bulky work of lifting. Mechanical aids are increasingly doing the work that used to be handled by brawn and muscle. This instructional video provides training on the correct methods for safe lifting. |
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| 物理的記述: | Videocassette (VHS)(18 min.) : sd., col., 1/2 in. |