不稳定性

Objective:To examine the effects of ECRG2 in centrosome amplification and chromosome instability.

目的：非整倍体是肿瘤细胞的典型特征，是人类肿瘤染色体不稳定性的普遍形式。

Abnormal centrosome, as chrosomal instability, is a widespread characteristic cancer cells.

中心体异常同染色体不稳定性一样是肿瘤细胞的一个普遍特征，并且可出现在肿瘤发生的早期阶段。

Besides, we also discussed the instability of shock wave, the differences between thermal model and non-thermal model, chromospheric cendensation and comparisons with the observations.

文中并就环顶激波的不稳定性、热模型和非热模型的大气演化差异、热模型下色球加热的可能性、色球压缩区的性质、以及与其它模型相比较等方面进行了讨论。

He developed unstable atrial fibrillation requiring electrical cardioversion and IV chronotropic agents.

他发生了不稳定性房颤，需进行电复律和静注心脏变时性药物。

The work shows that the collisional damping rate increases by adding the weak electron-ion collisional term.

我们还研究了低密度等离子体中由参量不稳定性产生的超热电子及其输运。

The different methods of controlling wake flow in engineering are introduced according to concept of absolutely and convectively unstable wake.

本文利用数值方法研究了静止圆柱和振动圆柱在不同流动条件下绕流流场的非定常性、不稳定性和非线性特征。

David Layzer, writing in his semiscientific book Cosmogenesis, argues that "the central property of life is not reproductive invariance, but reproductive instability."

戴维雷泽尔在他科普性的书《宇宙发生说》中辩称，&生命的核心价值不在它繁殖的不变性，而在它繁殖的不稳定性。&

David Layzer , writing in his semiscientific book Cosmogenesis, argues that "the central property of life is not reproductive invariance, but reproductive instability."

戴维雷泽尔在他的科普性书籍《宇宙发生说》中辩称，&生命的核心价值不在于它繁殖的不变性，而在于它繁殖的不稳定性。&

According to the intrinsic viscosity in dichloroacetic acid at 25℃, the molecular weight of polymers were estimated to be 20, 000～50, 000.Because of the thermal instability of the urea bond in molecular chain, all synthetic polymers began to degrade around 220℃, and had no melting point.

由于模拟聚合物中所含的脲键存在着热不稳定性，所有聚合物的热分解温度都在220℃附近（低于天然动物丝蛋白分解温度），并且所有聚合物样品在熔融之前已开始分解；另外只有分子量比较大的模拟聚合物P4有明显的玻璃化转变（T〓=107℃）。

Because the solar energy is influenced by the climate,the day and nights and the season, it is weak,discontiguous and instable.

地面上接受到的太阳能，受气候、昼夜、季节的影响，具有间断性和不稳定性及本身存在的强度弱。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。