The heat treatment has a little effect on the polycondensation of DL-lactic acid.
后期的热处理对促进DL -乳酸的缩聚反应作用不明显。
This strain can ferment hydrolytic sugar of the starch to form the DL-lactic acid in accordance with mechanism of homolactic fermentation.
该菌能按同型乳酸发酵机理使淀粉水解糖发酵生成DL-型乳酸。
OBJECTIVE: to design and fabricate the poly DL-lactic acid biodegradable fusion cage of lumbar vertebrae, and to analyze the material characteristics.
目的：设计并研制聚- DL -乳酸矩形生物降解腰椎间融合器，分析其材料学特性。
Objective:To study the biomechanics function of self-locking cerclage band made of biodegradable material poly-DL-lactic acid(PDLLA) in the fixation of fractures.
目的：研究生物降解聚-DL-乳酸（PDLLA）自锁式捆绑带固定骨折的生物力学性能。
Methods This composite with single particle-like Hydroxyapatite embedded in the Poly (DL-lactic acid) (PDLLA) matrix was prepared by applying the uniform compounding technique.
方法利用均匀复合技术，制备出羟基磷灰石在聚乳酸基体中呈单颗粒的复合材料；
With the Zinc as the catalyst, lactide monomer was obtained by decomposition of low polymer. With the zinc diethyl as the catalyst, the lactide was polymerized to Poly(DL-lactic acid).
以锌为催化剂由乳酸的低聚物裂解制得单体丙交醋，再由二乙基锌引发开环聚合得到高分子量的聚乳酸。
With the Zinc as the catalyst, lactide monomer was obtained by decomposition of low polymer. With the zinc diethyl as the catalyst, the lactide was polymerized to Poly(DL-lactic acid).
以锌为催化剂由乳酸的低聚物裂解制得单体丙交醋，再由二乙基锌引发开环聚合得到高分子量的聚乳酸。
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