His father was a watchmaker and his uncle a gunsmith, which probably explains his early interest in precision engineering and metalwork.
他的父亲是一名钟表匠，他的叔叔是一名军械工人，这或许可以解释为什么约翰·亚诺很早就对精密工程和金属制品产生了兴趣。
The actuator works stably and reliably, may be used in the domain of precision engineering.
驱动器性能稳定可靠，可望在精密工程等相关领域得到应用。
This is ideal optical instrument for micro observation in metallographic structure and surface morphology. It is suitable for research in metallography, mineralogy, precision engineering, etc.
适用于金相组织及表面形态的显微观察，是金属学、矿物学、精密工程学研究的理想仪器。
Minimum 3-5 years' experience in precision engineering industry with sales experience and has some client source.
拥有3到5年的机加工行业的销售经验，拥有一定的客户源。
Minimum 3-5 years' experience in precision engineering industry with sales experience and has some client source.
拥有3到5年的机加工行业的销售经验，拥有一定的客户源。
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