乳酸

The effect of salt concentration on lactic acid production and biomass formation was also investigated.

考察了盐度对菌株产乳酸和生物量的影响。

The effect of lactic acid on eliminating black membrane of beef omasum is studied in this paper.

本项试验对乳酸在牛百叶脱黑膜工艺中的作用效果进行了研究。

In this paper,methods to make preserves of radish through lactic acid fermentation were introduced.

介绍了以萝卜为原料，经乳酸发酵后再制成果脯的方法。

In this study, we investigated the cytotoxic effect of lactic acid on human keratinocyte cell line.

故在本篇研究中，我们想去调查乳酸是否会对人类皮肤角质细胞产生细胞毒性作用。

In this paper, methods of making preserves of sweet potato through lactic acid fermentation were introduced.

介绍了以番薯为原料，经乳酸发酵后再制成果脯的方法。

Their muscles have adapted to run very fast without releasing a lot of lactic acid.

他们的肌肉已经适应了高速运转而并不释放大量的乳酸。

We use the method of decomposing PLA to synthesize lactide by means of orthodoxical experiment method.

本文主要进行了丙交酯的合成工艺研究及聚乳酸的开环聚合工艺研究。

We investigate how the type of lactide affacts the molecular weight of PLA at the same time.

并考察了丙交酯类型及纯度对聚乳酸分子量的影响。

The results show that the water weight detached from the lactic acid is 95% and the structure of lactide is cyclic diester.

结果表明，用辛酸亚锡作催化剂，在逐步升温后期减压的条件下，乳酸的脱水量达95%以上。

This apparatus was designed based on summarizing the most synthetic processes of lactide presently.

本文在总结了目前众多聚乳酸单体——丙交酯的合成技术的基础上，选用减压蒸馏工艺并加以改进，设计出最佳的实验装置，使丙交酯的产率从30％提高到45％，并对重结晶后的母液进行有效的回收，回收率也能达到40％，对回收后的丙交酯进行了测试分析，证明了回收过程的可行性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。