预凝淀粉 pregelatinized starch
预凝器 precondenser
预凝固槽 Pre-coagulating trough
预制混凝土 PRECAST CONCRETE ; prefabricated concrete ; Fertigbeton
预应力混凝土 [建] Prestressed Concrete
预拌混凝土 [建] Ready-mixed concrete ; ready mix concrete ; pre-mixed concrete
预应力混凝土管桩 PHC ; prestressed concrete pipe pile ; concrete pipe ; Prestressed Concrete Piles
预制混凝土构件 precast concrete unit ; precast unit ; precast reinforced concrete member ; precast member
预制混凝土桩 precast concrete pile ; present concrete pile
预制凝胶 precast gel
试验结果表明，对于微污染水源，高铁酸盐预氧化可有效地去除部分有机物，并具有良好的助凝除浊作用。
The results showed that some organic compounds could be removed from micro-polluted source water by preoxidation with ferrate, which had good effect of aid to the coagulation and turbidity removal.
对模拟苯胺浑浊水样的实验研究显示，高铁酸钾预氧化可有效提高PAC混凝的有机物去除能力。
And the tests of treating simulated aniline water sample indicated, that potassium preoxidation can enhanced the ability of PAC coagulation to remove organic matter.
预氯化的助凝作用与原水水质有关，在藻类高发期其助凝作用较明显。
The coagulation aid of prechlorination is dependent on raw water quality, and its coagulation aid is more obvious in the algae development period.
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