由...引起

The dq0 transformation method based on instantaneous reactive power theory has been widely used in DVR at present.

有调查结果显示：在由电能质量问题引起的投诉中，由电压暂降引起的投诉占80%以上〔1〕。

In the present work, SDS-PAGE and light scattering method were used to evidence the 〓 and 〓 induced intramembrane aggregation of proteins. The aggregation was found mainly due to the binding of lanthanides to membrane proteins via noncovalent bonding.

本文用SDS-PAGE和光散射方法证明了由〓和〓可引起膜蛋白的聚集，这种聚集主要是由稀土离子以非共价键的与膜蛋白直接结合引起，也有少量以形成二硫键为特征的氧化性交联。

Legionnaire disease was mainly caused by Legionella pneumophila, especial the serogroup 1 (Lp 1). However, Lp1 pathogenesis has not been clearly characterized.

退伍军人症是由退伍军人菌所引起的肺炎疾病，其主要是由嗜肺性退伍军人菌血清型第一型( Legionella pneumophila serogroup 1；Lp1)所引起。

These results were similar to the observation in the most Mendelian monogenic disorders, in which a spectrum of different mutations in a gene caused a disease.

这些结果表明，在同一种多基因病中，可能存在着不同的亚群，不同的亚群可能由同一个基因不同位点的SNP 变异所引起，也可能由不同的主效基因的SNP 变异引起。

Results showed that the diurnal changes in Pn of the species in different periods were similar and could be expressed as two-hump curves, reflecting a significant middy depression. The decrease in Pn during midday was mainly resulted from non-stomatal limitation in July, but stomatal limitation occurred in August and September. High temperature and low relative humidity were critical factors constraining Pn in July.

结果表明，不同时期防风净光合速率日变化均呈双峰型曲线，具有明显的光合"午休"现象。7月份防风光合速率中午降低主要由非气孔限制引起，8月份、9月份防风光合速率中午降低则主要由气孔限制引起，7月份高温低湿是限制防风Pn的主要环境因子。

About 85 percent of cases are caused by a tumor in the pituitary gland, while 15 percent are caused by an adrenal tumor.

约85%的病例是由脑垂体肿瘤引起的，其余15%的病例由肾上腺肿瘤引起。

Using three prediction methods—probability integral, DM (1, 1) model and exponential smoothing and field measurements analyze the prediction accuracy and point out the applicable condition of the models.

对地表移动研究的核心内容——预测技术，本文提出应用多层递阶周期项分析方法分析由开采引起的地表移动，认为由开采引起的地表移动是趋势项、周期项及随机项运动的合成。

Though research, this paper shows that this rareness results not only from the absolute lack but also the low efficiency of the resource distribution and utilization.

本文通过分析认为这种稀缺性一方面是由中国教育资源绝对意义上的总量短缺引起的，另一方面是由现有教育体系内部在宏微观资源配置无效性和微观资源利用上的低效性引起的。

These differences are regarded as the effect of complicated melt flow caused by the RMF. Moreover, when the content of the primary phase or is small, many spherical microstructures form under the RMF condition. The analyses indicate that these special microstructures are likely the conjunction action of melt flow and concentration and temperature field uniformity caused by the RMF.

分析认为宏观偏析的消除，枝晶的碎断和细化以及溶质扩散速度的增大主要是由旋转磁场引起的熔体内部复杂流动导致的，而团状组织的出现主要是由熔体流动引起的浓度场和温度场均匀化导致的。

The etiology was simple obesity in one case, fiber streak of penis sarcolemma in 9 cases.

病因由单纯肥胖引起1例，由阴茎内膜纤维条索引起9例。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。