作为一种日常必需品，它将随着阅读纸质报纸的一代人而消亡。
As a day-to-day essential, it will die off with the generation who read print newspapers.
这其中的区别就是，人员管理是一种项目“经理”需要具备的技能，而不是项目“管理”必需的技能。
The distinction is that it’s a project “manager” skill, but not necessarily a project “management” skill.
烟草是中国一种重要的经济作物，而氮是植物必需的矿质养分，研究烟草碳氮代谢规律，对指导烟草的生产具有重要的作用。
Tobacco is an important economic crop, and nitrogen is essential mineral element. Studies on carbon and nitrogenous metabolism of tobacco have important action on tobacco production.
在这种利伯先天性黑蒙中，视细胞由于基因rpe65不能适当地产生一种对健康视力必需的蛋白而不能感光。
In this form of LCA disease, photoreceptor cells cannot respond to light because a gene called RPE65 does not properly produce a protein necessary for healthy vision.
对产物质量查验工作必将是一种过后工作，而产物质量地节制必需经过节制来完成。
Of product quality inspection work will be a post-work, product quality control must be achieved through the control.
本发明涉及一种随人体座姿而变的椅子，属于人类生活必需品技术领域。
The invention relates to a chair capable of changing with the setting posture of human body, belonging to the technical field of human living necessity.
本发明涉及一种随人体座姿而变的椅子，属于人类生活必需品技术领域。
The invention relates to a chair capable of changing with the setting posture of human body, belonging to the technical field of human living necessity.
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