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The results showed that in the growth period of R. glutinosa, soil ferulic acid, vanillic acid, and vanillin contents had a persistent increase, while β-hydroxybenzoic acid content increased first but decreased then. The addition of ferulic acid (8 μg·ml-1), vanillic acid (08 μg·ml-1), vanillin (12 μg·ml-1), and β-hydroxybenzoic acid (30 μg·ml-1) in water culture had stronger inhibitory effects on R. glutinosa root length, root mass, fresh plant mass, and plant height. Treating with test phenolic acids except β-hydroxybenzoic acid increased leaf chlorophyll content significantly, compared with the control. After treated with test phenolic acids, plant SOD and POD activities decreased after an initial increase, and plant malondialdehyde content increased. In the treatment of ferulic acid, root SOD and POD activities were the lowest, and roots were rotted and dead.

结果表明：阿魏酸、香草酸和香草醛含量在地黄生长期表现为持续增加，而对羟基苯甲酸含量先升高后降低；外加阿魏酸（8 μg·ml-1）、香草酸（0.8 μg·ml-1）、香草醛（1.2 μg·ml-1）和对羟基苯甲酸（3.0 μg·ml-1）对水培地黄根长、根质量、全株鲜质量和株高有较强的抑制作用；酚酸处理使地黄叶片叶绿素含量降低，除对羟基苯甲酸外差异性极显著；经过酚酸处理的地黄幼苗SOD和POD活性为先升高后下降，丙二醛含量升高，其中阿魏酸的处理使根中酶活性降至最低，根部腐烂死亡。

Due to the lack of enough photon counts, we are not able to make an X-ray spectroscopical imaging to deduce the radial distribution of the gravitating mass to compare with that of the optical virial mass.

与光学观测所作出的预计相反，这些数值显示SCGG 223是一个正常的低温星系群。

The principle of mass spectrometry using ionisation methods at atmospheric pressure has enormously increased the analytical power of mass spectrometry.

大气压 方法电离质谱法的原则极大地增加了的质谱分析的能力。

With the improvement of analytical methods and the development of thermal ionisation mass spectrometry and multiple-collector inductively coupled plasma mass spectrometry, the researches on geochemistry of non-traditional stable isotopes have made tremendous progress in the past ten years.

随着表面热离子质谱和多接收器电感耦合等离子体质谱(MC- IC P-MS)的广泛应用以及同位素分析方法的改进，近10年来非传统稳定同位素（Cu、Zn、Fe、 Se、Mo、Cr、Hg等）的研究得到迅速发展。

It is found that both the air mass flow rate and the ratio of the mass flow rate have a significant effect on the heat exchanger performance.

发现换热器两侧空气的流量比、流量大小对换热器的效率有着重要影响。

Every 'invariant mass' can be thought of a relativistic mass spinning inside a stationary box.

任何&不变的质量&可以被看作是在一个固定盒子内旋转的相对论性质量。

Considering non-spherical particles, starting from particle size distribution, the concept of the number of equivalent spherical particles was put forward, and the theory formula to calculate mass concentration of non spherical panicles was derived. The validity of the formula for non-spherical particles was verified. On this basis, aerosol mass concen-trations algorithm baaed on the number of equivalent spherical particles was proposed.

考虑非球形颗粒，从颗粒群粒度分布概念出发，提出了统计意义上的等效球形颗粒数概念，给出了非球形颗粒物质量浓度的理论公式，并利用该理论公式阐明了OPC测量非球形颗粒物质量浓度计算公式的合理性，进而给出了基于等效球形颗粒数的悬浮颗粒物的质量浓度算法。

The MMY biodegrading culture medium of the Lbrevis has been cultured for 10 hours,then was extracted by aceticethanol and analyzed by Mass spectra,me analytical results indicated there is new mass produced about bigger 74D than the o-Nitrophenol.

培养10h后的培养液经重蒸乙酸乙酯革取后，用质谱分析表明，新产生的中间代谢产物比底物分子量约大74D。

The current reiew of the interrelationship of product,quality, culture type,and media type for economically feasible system; the technical condition on climatological factors, carbonating,the need for mixing, seperating,harvesting and drying; and the progress of mass culture on Chlorella was summarized in this paper. The future development trends of mass culture will be automatic photosynthetic reactor culture.

本文就小球藻大规模培养中产量、质量、培养方式、培养基与经济上的可行性之间的关系；气候因子、二氧化碳补加、搅拌、分离、收获与干燥等技术条件及其研究的进展进行了综述，认为未来的发展趋势将是光合生物反应器培养。

Also, the mass media industry centralizes here - Beijing is the capital of mass media industry in China and 80% media products are produced and transacted in Beijing.

三是传媒产业聚集，北京是中国传媒产业的中心，有80%的传媒产品在北京制作和成交。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！