Timing of this type is always subject to some variation, so the import command to grab the clock image is run in the background, leaving the main shell free to keep time.
这种类型的计时总是会发生变化，因此将获取时钟图像的import命令放在后台中运行，从而避免使用主要的shell脚本跟踪时间。
The diurnal variation of concentration of background desert aerosol is mainly controlled by air disperse dilution.
背景沙漠气溶胶浓度的日变化主要由大气扩散稀释能力控制。
Some factors such as oblique beam radiation and background intensity variation are also further discussed. These factors can decrease the precision of measure system.
讨论了斜光束照射、背景光强变化等因素，这些因素降低了系统的测量精度。
In this paper, basing on the profile model of variable electric property, the normal background value is calculated to eliminate the influence of surface variation.
本文以“变化电性剖面模型”为基础，计算出正常背景值，以消除表层变化的影响。
This thesis researched and designed the technology of variable-frequency speed Variation system based on DSP, which based on this background.
本文以此为背景对基于DSP变频调速系统进行了研究。
With 6 different genetic background and high pure upland cotton lines as female parents, the variation of allogamous affinity and main traits of hybrid boll were analyzed under assisted pollination.
研究了人工授粉条件下6个遗传背景差异较大、纯合度高的陆地棉亲本的异交亲合力及杂交铃主要性状差异。
Not only they have certain detail principles, but also reflect the Sino Euro fusing and variation of historical background, at the same time, and display some decorating and symbolizing effects.
这些形式中包含了它特有的细部特征，它既有自己一定的细部法则，也反映了中西融合与变异的历史背景，同时还带有装饰与象征的效果。
BACKGROUND: Contingent negative variation (CNV) is a kind of cerebral evoked potential, which is closely related with mental medicine and psychology.
背景：关联性负变是与精神医学和心理学关系最为密切的一种脑诱发电位。
The experiments in different noise background show that the algorithm can adapt to the variation of the background noise level and reach high accuracy …
在不同背景噪声下的实验结果表明，该方法可适应背景噪声能量的变化，得到高正确率的词边界检测。
The background harmonic voltage is related with not only the power of harmonic sources and variation of power line voltages but also the power system structure and capability.
背景谐波电压不仅与电网中谐波源强弱、网压变化有关，而且与电网容量、结构有关。由于其直接决定电网承受畸变负荷的能力，所以有必要对各种电网的背景谐波状况作全面了解和测量。
The background harmonic voltage is related with not only the power of harmonic sources and variation of power line voltages but also the power system structure and capability.
背景谐波电压不仅与电网中谐波源强弱、网压变化有关，而且与电网容量、结构有关。由于其直接决定电网承受畸变负荷的能力，所以有必要对各种电网的背景谐波状况作全面了解和测量。
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