It results that the tool sleeve adopting new process technology is characterized by high precision, good quality, steel saving and high efficiency, meanwhile, it reduces the labor intensity.
生产实践表明，采用新工艺加工工具套，精度高，质量好，节约钢材，提高了生产效率，减轻了劳动强度。
Vacuums can a healthy, labor-saving grooming tool.
吸尘器是一种健康省力的梳洗工具。
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