Liquid PAC (poly aluminum chloride) produced by the coagulant plant of Shaoguan Water Company in Guangdong province was tested experimentally to examine some parameters related to its application.
本文对韶关市自来水总公司净水剂厂生产的液体PAC应用的有关参数进行了试验研究。
2
Grape seeds contained seed oil and proanthocyanidins which were generally named plantpoly-phenol.
葡萄籽中含有葡萄籽油和植物多酚类化合物——原花青素。
3
And then studied on tea garden with tea plant plucked in shoots and left in twig, and breeding seedlings with seedlings, analysed the practicability of poly-leaves cutting.