Based on the fact that low permeability gas reservoir needs fracturing,particle dynamics is used to establish critical gas flow velocity equation when there is fracturing sand in fractures.
为此,根据低渗透气藏需要进行压裂生产的特点,运用质点动力学的方法,建立裂缝中存在压裂砂情况下的临界气流速度公式。
Aims Many xerophilous plants in the West Erdos region of Inner Mongolia share the same vegetative reproduction,fissurate growth,which is an important adaptation to drought environments.
研究荒漠旱生小灌木长叶红沙(Reaumuria trigyna)劈裂生长过程的形态发生及其内源激素含量的变化。
It is an ancient species in its own genus and well-adapted to drought environments with fissurate growth and summer dormancy.
选取内蒙古磴口县境内具有绵刺群落的草原化荒漠区为研究样区,于2002～2003年每年8月1～5日采集未劈裂、正在劈裂和已劈裂植株,运用PV技术对不同劈裂生长状态绵刺的多种水分关系参数(φssat、φstlp、ROWCtlp、RWCtlp、Δφ、εmax等)进行了测定,从绵刺保持膨压的能力和途径两方面进行了深入探讨;同时结合同一项目研究中绵刺劈裂生长过程中抗氧化酶系统和内源激素方面的研究成果,综合分析并探讨了绵刺劈裂生长的发生机理及其环境适应性。
Some of them have the same character-fissurate growth.
内蒙古西鄂尔多斯荒漠区拥有非常丰富的灌木资源，它们对于干旱高温多风沙的恶劣气候环境不仅具有各自独特的适应方式，同时部分早生小灌木还具有共同的生长方式—劈裂生长。
The effect of temperature on strobilation and early stage growth of jellyfish,Rhopilema esculenta;
温度对海蜇横裂生殖和早期生长的影响
The effect of temperature and illumination on the podocyst propagation and strobilation of seyphistoma of jellyfish was studied and the result indicated that suitable nutrition and environmental factors could improve the podocyst propagation,and the quantity of strobilae in the two test groups both increased with the time.
研究了不同温度,光照条件对海蜇螅状体生长及足囊繁殖和横裂生殖的影响。
The formation of cleaved polyembryony and the differentiation of primordial cotyl.
在悬浮培养条件下，还观察到了裂生多胚及子叶原基的分化。