secondary plant

Vegetable tannin ( plant polyphenol ), as a complex higher plant secondary metabolite, widely exists in kingdom.

植物单宁 ( 植物多酚 ) 是复杂的较高等植物的次生代谢物, 广泛分布在植物体内.

In order to achieve the purpose of reuse, the secondary treatment water in the sewage treatment plant need tertiary treatment.

某市污水处理厂需要对其二级处理出水进行深度处理，以达到再生回用的目的。

Noise Mitigation of Jining Power Plant's Primary and Secondary Air Supply System and the Resulting Effect

济宁电厂一、二次风系统的噪声治理及效果分析

The removal efficiency of organic pollutants characterized by AOX in a typical secondary effluent of sewage treatment plant ( Beijing GaoBeiDian sewage treatment plant) was studied by SAT ( Soil Aquifer Treatment).

研究了土壤含水层处理工艺对典型城市二级出水（北京高碑店污水处理厂）以可吸附有机卤化物（AOX）表征的有机物的去除效果。

The result indicates that the model can simulate the varying duty working characteristics of nuclear steam turbine plant accurately, and meets the needs of simulation analysis work on secondary system of nuclear power plant.

结果表明，该模型能准确模拟核汽轮机装置的变负荷运行特性，满足核动力二回路系统实时仿真分析要求。

The plant essential oils is the secondary metabolism of plant.

植物精油是植物体内的次生代谢物质,化学组成较为复杂.

Most antifeedant secondary plant compounds fall into one of four categories: sesquiterpene lactones, isoflavonoids, quassinoids, limonoids.

大部分植物源拒食性次生性化合物可以分为倍半萜烯内酯类、异黄酮类、苦木素类和柠檬苦素类化合物4大类。

These plant residues and sediment carrying a certain amount of pollutants, if not promptly removed from the water, may be pollutants will re-enter the water body to cause secondary pollution, thus affecting the purification of the wetland system at the same time lead to resource waste.

这些植物残体与底泥携带有一定量的污染物，如果不及时的从水体中移除，可能污染物会重新进入水体中造成二次污染，从而影响人工湿地系统的净化效果，同时造成资源的浪费。

Optimization of operating the secondary reformer in an ammonia plant is investigated by process simulation.

采用过程模拟的方法,对氨厂二段炉的优化操作进行了研究.

The primary sedimentation tank is the pretreatment construction of secondary waste water treatment plant, and the main construction of first waste water treatment process.

初沉池是二级污水处理厂的预处理构筑物，一级污水处理厂的主要构筑物。

Effects of plant secondary metabolites on the traits of nutritional and physiological ecology in mammalian herbivores

植物次生代谢物对植食性哺乳动物营养和生理生态特征的影响