Until now, scientists have believed that cancer cells must transform permanently from stationary epithelial cells into migratory mesenchymal cells in order to metastasize.
目前为止,科学家普遍认为癌细胞必须永久性的由静止性的上皮细胞转变成迁移性的间充质细胞后才能够转移。
The method of stationary configuration loop to solve the order of motion of S - SBM is presented.
提出了解决S-SBM运动顺序问题的静止位形点环路法。
The work described here is done in order to separate chiral medicine and to determine their competitive isotherms on enzyme chiral stationary phase.
这是拆分药物对映体,测定对映体在酶手性固定相上竞争性等温线的上游工作。
Check all the stationary and equipment at work station. Ensure it is ready and in good order or condition.
检查工作区域的工作用品。要确保所有的物品按需要正确放置。
In order to detect the low-speed weak target in the stationary sea clutter, the clutter-whitening processing module is proposed to replace the conventional MTI filter and Doppler filter bank.
为了检测平稳海杂波中的低速弱目标,本文引入杂波白化处理模块取代雷达常用的MT I滤波器和多普勒滤波器组。
In order to have an electron in a stationary orbit this implies standing wave.
为了在静止的轨道中拥有电子,驻波是不可少的。
In order to meet the technical requirement nowaday, this paper represents how to perform stationary stochastic signal analysis with microcomputer.
为适应现代工程技术的需要,介绍了平稳随机信号分析在微型计算机上的实现和应用。
Forcasting method of surge trouble based on high_accuracy fan performance model is put forward in order to realize surge trouble forecasting of axial fan adjusted with rotary and stationary vanes.
提出了一种基于高精度性能模型的轴流通风机喘振故障预报方法,以实现动(静)叶调节轴流通风机喘振故障的预报。
The article educed that the series of hard wheat futures and spot prices show their first-order difference stationary, I (1) process, by the unit root test.
通过单位根检验,确定硬麦期货与现货价格序列具有一阶差分平稳性即i(1)过程。
The stationary consensus algorithm with communication delay was proposed to solve the coupled consensus problem of the second-order dynamic agents.
采用具有通信时延的静态一致性算法研究二阶动态个体的耦合一致性问题。
In the past, signal between stationary platform and rotary platform transmitted by electronic slip ring in order to realize remote control.
早期,旋转平台间的信号传输与控制采用电滑动环旋转传输电信号来实现。
Order analysis plays an important role in non-stationary vibration signal processing in rotating machinery.
旋转机械非稳定信号阶比分析技术,是旋转机械特征分析的重要内容。
It is proposed that selective intermolecular force can be used as a new parameter for; selecting stationary phase in order to separate the isomer but not the "polarity similarity principle".
本文通过选用十一种具有极性梯度的不同固定液,探讨桂皮酸顺反异构体硅烷醚衍生物分离与选择性分子间引力的关系,并从分子结构的角度来阐述选择相应固定液进行异构体分离的可能性。
Highly visible stationary laser diffraction patterns from liquid surface waves at a few tens Hertz were obtained experimentally, and the disappearance of zero order diffraction spot was also observed.
对于频率为几十赫兹的液体表面波,实验上观察到稳定、清晰、反衬度非常高的衍射图样,并发现了零级缺级现象。
In order to process the non-stationary vibration signals such as speed up or speed down signals effectively, the order bispectrum technique was presented.
针对齿轮箱升降速过程中振动信号非平稳的特点,将常规的阶次分析与双谱分析技术相结合,提出了基于阶次双谱的齿轮箱故障诊断方法。
In order to process the non-stationary vibration signals such as speed up or speed down signals effectively, the order tracking technique and Angle domain average technique were presented.
针对齿轮箱升降速过程中振动信号非平稳的特点,将阶次跟踪、角域平均和幅值、相位解调分析技术相结合,提出了基于幅值和相位解调分析的齿轮箱故障诊断方法。
The position of the second order phase transition points for the stationary black holes has been argued by many authors recently.
首次提出了交流电机绕组△/带尾△接法的换相变极的对称条件,并利用双极对槽号相位图对之进行了严密的论证。
The position of the second order phase transition points for the stationary black holes has been argued by many authors recently.
首次提出了交流电机绕组△/带尾△接法的换相变极的对称条件,并利用双极对槽号相位图对之进行了严密的论证。
应用推荐