纳米碳酸钙的表面改性技术目前主要有有机物表面处理、高能表面处理和无机物改性三种方法。
The surface modification of nanometer calcium could be conducted by using organic substance, high energy and inorganic substance.
生产者：主要是绿色植物，利用阳光进行光合作用，把无机物合成有机物供给生物。
Producers are chiefly green plants that synthesize organic substances from inorganic materials through photosynthesis and provide "food" to organisms.
它主要由落从海滨和淡水的区域和由洗涤入湖的沉积的无机物养育。
It is nourished mainly by dead matter that falls from the littoral and limnetic zones and by sediment washing into the lake.
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