查询词典 amplification factor

With the amplification of farming scale and increase of yield, a series of problems to be resolved urgently appear in production, for example: Bad ovary development of female crab, inclining egg-holding rate, high mortality of embryo development, low survival rate of juvenile crab, the shortage of good quality juvenile, precociousness of crab etc.

随着河蟹养殖规模的扩大、集约化程度和产量的提高，在实际生产中出现了一系列亟待解决的问题，雌蟹亲体的性腺发育不良、抱卵率下降、胚胎发育死亡率高、幼体育成率低、质优量足的苗种供应不足、河蟹性早熟等问题，都严重制约了河蟹养殖业的健康、稳步发展。

No amplification was observed when using RNAs extracted from Pseudorabies virus and uninfected MDBK cell.

对伪狂犬病毒和未接种病毒进行PCR扩增，结果均为阴性。

Hard rock evolved in the late '60s, as psychedelia and blues rock began pushing the boundaries of amplification and blues-based riffs.

硬摇滚始于的60年代后期，当时迷幻乐和布鲁斯摇滚正不断地推动音响放大技术和布鲁斯基础上的即兴重复音乐的发展。

The total DNA has been extracted from the fresh leaves of 4 medicinal species of pteridophyte with CTAB, SDS, to compare their effects on DNA extraction. The result shows that the optimum preparation method obtained to extract high-quality DNA lays theoretic and practical base for PCR amplification and primer design, for filtrating related gene of the active elements from leaves of the four pteridophytes.

以四种药用蕨类的叶片为材料，采用改进的CTAB法、SDS法分别对四种蕨类进行了总DNA提取效果的比较分析，结果表明，通过实验获得最佳的DNA提取方法，为PCR扩增，引物设计，为筛选四种药用蕨类中的活性成份的相关基因奠定理论和实践基础。

Because the amplification effect is mainly centralized in the low-frequency part of radial component, we can get more information about the whole trend of model's variation.

对比SC02和SC03的频谱特征可以看出，由于垂直分量被放大的主要是高频成份，其频谱特征能够提供更多关于模型结构局部变化的信息。

The most efficient and most common circuit for radio-frequency selection and amplification used in radio receivers is the superheterodyne.

最高效率和多数最共同的电路为radio-frequency 选择和放大作用被使用在无线电接收机是超外差收音机。

This process is based on the flowrate amplification due to entropy wave modulation in the regenerator.

它的基础是回热器的熵波调制所引起的流放大作用。

The present paper attempts to examine the above "selective regular amplification" phenomenon in terms of numerical simulations based on the phase-field model.

本文旨在对上述枝晶生长在小振幅外信号源作用下的"选择性规则化放大"现象应用相场模型进行数值模拟研究。

Polymerase chain reaction amplification of BAT-26 is considered a simple and reliable method to screen the RER status of cancer.

以此种方式可以有效筛检"超过99%"的癌症组织或细胞株检体的「复制错误表现型」之状态。

Sound manner; The establishment of sound field; Reverberation time; Loudspeakers; Power amplification

供声方式；建立声场；混响时间；扬声器；功率放大器

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"