根条件

In short, programmed cell death is shown to be the mechanism involved in lysigenous aerenchyma formation by the phytohormone ethylene.

在缺氧条件下，植物根皮层细胞会死亡解体，致使崩溃细胞的径向胞壁聚集在一起，形成大的空腔。

The density changes of Radix Puerariae and Flos Puerariae were determined in different concentration and time and enzyme dosage by the alcoholometer.

方法］利用酒精比重计测定葛根与葛花在不同用量、不同时间及不同酶用量的条件下与酒精作用的密度。

Therefore, the signal of analyte could not be suppressed when using ammonium phosphate in CE/MS.

在酸性条件下，电渗流的速度降到相当低，因此缓冲溶液中的磷酸根阴离子流入质谱的量是非常少的，所以使用磷酸铵的缓冲溶液，并不会严重影响分析物的质谱讯号。

The distribution of the associated characteristic equation roots is given according to the polynomial theorem, and the conditions for ensuring the existence of Hopf bifurcation are obtained. The obtained result is applied to chaotic control.

利用多项式理论给出了其特征方程根的分布，得到了Hopf分岔产生的条件，并将结果应用到混沌神经网络的控制中。

Then the delay is used in circadian model. Using the delay as a argument, the distribution of the roots of the characteristic equation associated with the model under light is analyzed. Then the stable and Hopf bifurcation condition of the circadian model with delay is obtained.

然后，将时滞引入到昼夜节律系统模型后，以滞量为参数，讨论光照昼夜节律模型线性部分特征方程根的分布情况，得到该系统的稳定性和Hopf分支产生的条件。

By analyzing the distribution of the zeros to the transcendental characteristic equation associated with the trivial.solution,we obtain some- sufficient conditions on the stability and instability of the trivial solution.These results are generalized to n-unit neural networks by means of space decomposition in this Chapter.

在第二章中，我们讨论了不带自反馈与带自反馈的3元环状神经网络系统平凡解所对应超越特征方程的根的分布情况，确定了系统平凡解稳定与不稳定的充分条件，并利用空间分解的方法把相应的结果推广到n元环状神经网络系统。

In this paper,the effect of horseradish peroxidase on the biosynthesis of artemisinin was studied.

通过细胞提取液，在体外条件下研究了辣根过氧化物酶对青蒿素生物合成的影响。

The experiment was conducted to study heavy metal accumulation, distribution and micro-ambient change of ectomycorrhizal fungi Boletus edulis in vitro.

在离体培养条件下，对外生菌根真菌Boletus edulis菌丝铜镉积累分配与生长微环境变化进行研究。

Under the same conditions, the effect of ARF (pH 1. 0～2. 0) application on the soil pH value was different on two different calcareous soils in texture and pH value.

在同样条件下，酸性根际肥（pH 1.0～2.0）对不同质地的两个石灰性土壤pH值的影响和对土壤铁的活化程度是不同的。

The best inoculation effect was native fungi in the rhizosphere of Caragana korshinskii under soil water stress.

水分胁迫条件下，以接种柠条锦鸡儿根际土著菌的效果最佳。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。