The production line is mainly used in producing PP-R, stainless steel compound pipe production line and others, such as PP-stainless steel and other compound pipe materials.
该生产线主要用于生产PP-R不锈钢、铜塑复合管生产线及其它如PP-不锈钢等复合管材。
Oridonin anent-kaurene diterpenoid compound mainly isolated from the leaves of R. rubescen. Oridonin has been proved to possess good antitumor activity .
冬凌草甲素是从冬凌草等植物叶子中提取出的一种贝壳杉烯二萜类化合物，具有好的抗肿瘤活性。
The chiral guanidine—compound(6)was synthesized from the methyl(R)-phenylglycinate hydrochloride as material and the reaction conditions were investigated.
本文以（R）- 苯基甘氨酸甲酯盐为原料合成了手性胍— 化合物（6），并对合成反应条件进行了探索和优化。
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