The sym- biosis of indoor microorganism, kinds of mite and its harm, anti-mite agents, test method of anti-mite effects as well as the an- ti-mite effect using carboxylic ester are all introduced.
作者从室内尘埃中微生物的共生关系、室内螨虫的种类及其危害、防螨虫的制剂、防螨虫效果的试验方法和羧酸酯类的防螨效果等方面作详细介绍,认为采用化学法防螨整理可获得理想的效果。
Thermal-oxidative stability of poly (vinyl chloride) (PVC) by carboxylic ester rare earth salt (CERES) has been studied during thermoexidativeageing in static condition in air.
用热烘法研究了羧酸酯稀土(CERES)对聚氯乙烯(PVC)的热氧稳定作用。
The present invention relates to the stable and high purity 7-phenacetylamino-3-pyridylmethyl -3-cynnematin-4-p-methoxybenzyl carboxylic ester crystal and its preparation process.
本发明涉及一种稳定的、高纯度的7-苯乙酰氨基-3-吡啶甲基-3-头 孢菌素-4-羧酸对甲氧芐酯晶体及其制备方法。
The effect of reaction conditions on the yield of carboxylic ester was investigated.
考察了反应条件对酯化产率的影响。