查询词典 ethanol

They will produce up to 350,000 Liters of 99.5-percent pure bioethanol from sugarcane per day for use in the production of gasohol, an alternative fuel consisting of 10 percent ethanol and 90 percent premium petrol.

它们将在生产乙醇-汽油混合燃料（一种有10%乙醇和90%特级汽油组成的替代燃料）的过程中，每天从糖蔗提炼生产35万公升99.5%纯度的生物乙醇。

In order to acquire the accurate signal from the noisy surrounding and get the relevant information about the gasohol from a lot of complex spectrogram which are made up of signals with a series of wavelengths, a compact, energysaving portable near infrared analyzer was designed to determine the content of water and ethanol in gasohol.

为了保证在恶劣环境下提取出高质量的电信号以及从众多波段的电信号组成的光谱图中准确地提取出乙醇汽油的相关信息，确保工作人员能利用仪器方便地确认乙醇汽油中乙醇和水的含量，提出了体积小、功耗低的便携式近红外乙醇汽油分析仪的设计方案。

However, the gelation tune was decreased with the increase of water amount and increased with the increase of ethanol amount.

在类似"两步法"中，通过同时使用的氢氟酸和氨水，凝胶化时间更短，其最佳条件是无水乙醇和水与正硅酸四乙酯的体积比各自是4和0.6，同时加入氢氟酸和氨水的体积比为1：1时，获得的比表面积最大。

The results showed as follows: 1 Extraction of gelsemium total alkaloids. Total alkaloids were extracted with 95 per cent ethanol. The extract rate was 0.519 per cent and the extract purity were 88.02 per cent and 87.38 per cent; Total alkaloids were extracted with chloroform .The extract rate was 0.416 per cent and the extract purity were 89.02 per cent and 94.52 per cent. 2 Isolation of gelsemium total alkaloids with TLC. Total alkaloids contained five or more alkaloids. The optimal developing agent was chloroform :methanol :ethyl acetate(9:l:0.3),the optimal eluent was methylene chloride:methanol(92:8). 3 Isolation of total alkaloids with column chromatography. Alkaloid A and alkaloid B were obtained, alkaloid B was identified as koumine.

研究结果如下：1、钩吻总碱的提取：用95％的乙醇提取钩吻生物碱提取率为0.519％，其提取物纯度为88.02％、87.35％；用氯仿提取钩吻生物碱提取率为0.416％，其提取物纯度为89.02％、94.52％。2、钩吻总碱的薄层层析分离：总碱中含有5种或5种已上的生物碱；氯仿：甲醇：乙酸乙酯(9：1：0.3)是最佳薄层层析的展开剂；二氯甲烷：甲醇(92：8)是柱层析的最佳洗脱剂。3、钩吻总碱的柱层析分离：共得到两种钩吻生物碱单体成分碱A和碱B，碱B为钩吻素子，碱A可能是钩吻素甲。4、钩吻总碱的急性毒性试验：钩吻总碱小鼠腹腔注射的半数致死量LD_(50是：7.38mg／kg，95％的可信限范围为：6.67mg／kg～7.94mg／kg。

OBJECTIVE To study the effects of proliferative inhibition of the ethanol extract of Guan gentian for the S-180 sarcoma on mice.

［目的］探讨关龙胆乙醇提取物对小鼠S180肉瘤的抑制增殖作用。

ABSTRACT:OBJECTIVETo study the effects of proliferative inhibition of the ethanol extract of Guan gentian for the S180 sarcoma on mice.

探讨关龙胆乙醇提取物对小鼠S180肉瘤的抑制增殖作用。

The ethanol extract of Guan gentian has the effects of proliferative inhibition for S-180 sarcoma on mice.

结论］关龙胆乙醇提取物对小鼠S180肉瘤具有抑制增殖作用。

CONCLUSIONThe ethanol extract of Guan gentian has the effects of proliferative inhibition for S180 sarcoma on mice.

结论关龙胆乙醇提取物对小鼠S180肉瘤具有抑制增殖作用。

Showed that: After being treated with the combined antiseptic germicide of 60% ethanol, 0 5% lactic and 0 2% acetic acid, together with calcium alginate coating, the cooked meat was left unspolled at 28 ℃ for 7 days.

将两种可食性涂膜材料，分别与无毒抑菌剂联合使用，对熟肉制品进行保鲜处理，研究表明，经 60 %乙醇、 0 。5%乳酸和 0 。2 %醋酸复合抑菌剂浸泡，并以海藻酸钠涂膜包被，处理后的熟肉制品在 2 8℃保温 7天不腐败变质，细菌总数及大肠菌群均未检出

Objective To investigate the effects of a long-term ethanol feeding on the glycogen content and structure of the liver in rats.

目的 观察长期酒精灌胃对Wistar大鼠肝组织糖原含量及结构的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。