In a kind of star assembly line, interstellar molecular clouds collapse, producing new stars, which then gradually push back the remaining gas and dust.
类似于一条恒星生产线，星际间分子云瓦解产生新恒星，然后新的恒星逐渐将剩下的气体和尘埃推走。
A kind of particle swarm optimization method with the characteristic of logical time-sequenced is proposed and applied to procedure parameters optimization of semiconductor assembly product line.
提出一种具有逻辑时序特征的微粒群优化算法，并将其应用于半导体封装生产线的工序参数优化中。
The factory is based on ISO9000 quality control system management, and it has the advanced production assembly line and each kind of check-out facility.
本厂依据ISO9000质量管理体系运行，拥有先进的生产流水线及各种检测设备。
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