Place unit on a clean workbench, in a dust - free and moisture-free room. Handle all parts carefully, and protect them against corrosion and impact damage after disassembly.
在一个无尘、无水汽的房间内，将部件放置在工作台之上。当部件分解开以后，要小心拿取，以免因腐蚀或碰撞造成损伤。
"As we age, the ability of the immune system to fight disease and infections and protect against cancer wears down as a result of the impact of oxygen radicals on the immune system," Nel said.
Nel说，当我们变老时，由于氧自由基对免疫系统的影响，导致系统免疫防御和免疫监视能力下降。
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