History
1. The development process refers to the development process of history, what happened in the middle of the development process, the reasons for these events and what role they played in the development of history. Development is a process of progress and change of things from birth, and it is the constant renewal of things. It refers to a continuous process of change. There are both quantitative and qualitative changes.
2. The connotation of development:
Development includes both physical and psychological changes.
The course of development includes an individual's life. Development exists regardless of age.
Development involves many fields. Such as individual body, brain, thinking, imagination, emotion, etc., are all within the scope of development.
Development not only points to the process of advance, but also refers to the change of decline and extinction.
شنغهاي yanxi استيراد & التصدير المحدودة
نحن ، ملتزمون بالبحث والتطوير المستقل والإنتاج والمبيعات لمعدات اللحام العاكس ، نبني نظام القيمة الداخلية المثالي لـ "RIVSEN" من خلال مفاهيم التطوير الحديثة ، والقدرة الإنتاجية القوية ، ونظام الإدارة الصارم والموارد البشرية الوفيرة.
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