精

This article through the comprehensive research of extraction method and technique of Almond oil and bitter almond oil, provide theoretical basis and technological information for the processing and utilization of bitter almond. On the other hand, the best habitat of bitter almond is selected with the oil contents and fatty acid constituents and VE of almond oil, also with oil and the benzaldehyde content of bitter almond oil.

本研究通过对苦杏仁脂肪油、精油提取工艺以及提取方法的综合研究，确定苦杏仁脂肪油及精油提取的最佳工艺，为苦杏仁加工的全面性、合理性提供理论依据和技术资料，另外还通过对黄土高原不同产地苦杏仁的脂肪油以及精油含量、成分等指标的研究，优选出了苦杏仁的最佳产地，为建立苦杏仁的规模化生产基地奠定了基础。

Our researches on the biological activity of bitter almond oil on four pests provide the theoretical basis for the feasibility of bitter almond oil as plant-based pesticides.

本研究通过苦杏仁精油对四种试虫的杀虫活性研究，旨在为苦杏仁精油作为植物源农药的可行性提供理论依据，为苦杏仁精油的产品开发拓宽思路。

By the National Ministry of Science and Technology of calcium hypochlorite classified as national key new products, annual production capacity of 30,000 tons, now ranks first in Asia and the world's third, 98% of products sold to Southeast Asia, Europe and the United States and other 58 countries and regions; own knowledge sodium calcium hypochlorite property law international leading production technology, with an annual output of independent design and construction of 5000 tons, 10,000 tons of calcium hypochlorite is the capacity of production facilities.

漂粉精被国家科技部评定为国家重点新产品，年产能力3万吨，目前居亚洲第一、世界第三，产品98%销往东南亚、欧美等58个国家和地区；拥有自主知识产权的钠法漂粉精生产技术国际领先，具备独立设计和建设年产5000吨、10000吨漂粉精生产装置的能力。

Ingredient: natural seaweed essence, tea tree essential oil, sandalwood essential oil, cassia essential oil etc

成份：天然海藻精华提取液、茶树精油、檀香精油、肉桂精油等。

Crude EO was then dissolved with ethanol, frozen at - 15 ℃ for 48 h, and centrifugally separated and filtered to get rid of impurities. The final product EO with yield of 2.09 ％ and purity of 99.0 ％ was then obtained after distilling the liquor under vacuum.

往精油粗产品中加入乙醇溶解，放入-15℃冰箱中冷冻48 h，离心分离去除树脂状物质，过滤，滤液进行真空浓缩后，即得精油，产率约2.09％，精油纯度99.0％。

Results showed that TDI induced toxic action on spermatogenic cell,while the chondriosome was its target within the length and concentrations.

结果表明：在本实验染毒时间和染毒剂量范围内，TD I对雄性的生殖毒性主要表现为对各级生精细胞均有一定的毒性作用，作用的靶点是细胞内的线粒体；TD I通过影响各种酶的活性，干扰了睾丸组织的有氧代谢和无氧供能，抑制了细胞对能量的利用，损伤了各级生精细胞，导致生精上皮不可逆的损害，从而造成了其对雄性生殖系统的损伤；TD I对雄性生殖细胞的核酸代谢以及DNA合成有一定影响。

Chromatin hetropycnote partly in spermatogonium, then become highly coacervate to form chromosome at the stage of spermatid and at last decondense at the stage of spermatozoon.

染色质在精原细胞中为部分异固缩，在精母细胞中高度凝聚为染色体，在精细胞及精子中为均匀非致密态。

This paper analyzes the moving characteristics of nipper mechanism of new type FA266 comber made in China, and discusses the eccentric shaft and eccentricity influence on combing processing and the moving of nipper mechanism, which provides the theory basis of the from of opening-closing time adjusting mechanism, dimension, process parameter, and adjustment pattern.

分析了国产新型精梳机FA266钳板机构的运动规律，讨论了偏心轴偏心距对精梳工艺及钳板机构运动的影响，为确定国产新型精梳机中钳板运动的开闭口定时调节机构的形式、尺寸、工艺参数及调节方式提供理论依据。

This paper analyzes the moving characteristics of nipper mechanism of new type FA266 comber made in China, and discusses the eccentric shaft and eccentricity influence on combing process ing and the moving of nipper mechanism, which provides the theory basis of the from of opening-closing time adjusting mechanism, dimension, process parameter, and adjustment pattern.

分析了国产新型精梳机FA266钳板机构的运动规律，讨论了偏心轴偏心距对精梳工艺及钳板机构运动的影响，为确定国产新型精梳机中钳板运动的开闭口定时调节机构的形式、尺寸、工艺参数及调节方式提供理论依据。

This article describes the properties of HY68 comber,introduced some measures to eliminate short fibers,neps and impurities in combing process and to improve the evenness of the combed slivers.

文章介绍了HY68型精梳机的性能，并针对该机论述了在精梳过程中如何去除短绒、棉结杂质及提高精梳条干水平的措施。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷