临界区

The critical pressure difference is 0.767MPa when the high and low pressure zones distribute along the direction of maximum principal stress.

高、低压力区沿最大水平主应力方向分布时，发生套管变形的临界压差为0.767MPa。

After undergoing a chaotic region, the period number will add one, in the same time, magnitude of the subharmonic response increases in sequence as the rotational speed ratio increases. When the rotational speed is below the critical speed, the chaotic bands resulted directly from a perioddoubling bifurcation occur among the successive orders of superharmonic responses, then they can return directly to periodic motion by a reversed period-doubling bifurcation.

在转速小于临界转速的情况下，在分岔图中各个连续阶亚谐运动的转换区中分别都出现了经由一个倍周期分岔直接导致的混沌频带，后又直接由一个逆倍周期分岔转化为周期一的运动，同时在三个混沌频带之间都出现了幅值突跳的现象。

In order to analyze the influence of pulse-width on optical nonlinearities below the band edge, the threshold intensity to examine the relative strength of bound-electronic and free carrier nonlinearity is studied.

为了分析脉冲光的脉冲宽度对带隙区光学非线性的影响，用光波传输方程研究了区分束缚电子光学非线性和双光子吸收诱导自由载流子非线性相对强弱的临界光强。

Auniformfast calculation model for CO2 thermodynamic and transport properties in sub-critical pressure region,covering pressure fromthe pressure of triple point to critical point,superheating of 0~200 K,subcooling of 0~87 K,was presented.

提出CO2亚临界压力区具有统一形式的热力性质和传输特性的显式计算模型。

Methods 962 households in Baoding City were selected for the household survey through two stage sampling method_random cluster sampling and systematic sampling.

通过两阶段抽样方法(随机整群抽样和系统抽样)调查了河北省保定市南市区、北市区和新市区 3个区的 962户居民的卫生服务利用情况，采用调查表的方式入户调查，并将被调查家庭分成 3组：相对贫困组、贫困临界组和一般家庭组进行公平性分析。

Based on the research, the author points out the distribution of the disturbed coal along the coal bed is caused by the coal-seam slip; presents multistratified and multi-staged; developed in some specific coal beds; the value of Ng of the disturbed coal possess dual character in the coal-gas outburst prediction.

分析了影响煤层瓦斯分布和瓦斯突出的地质因素，重点研究了煤体结构和地质构造标志；提出了突出煤层临界厚度计算方法、瓦斯动力现象综合分类方案和研究区突出防治措施建议。

The sample which has retrogressive phenomenon precipitates the secondary phase during re-ageing treatment subsequently, and the reprecipitation sequence is due to the grain size caused by severe plastic deformation. There is a critical grain size below which the reprecipitation sequence changes, the heterogeneous precipitation of phase at grain boundaries would suppress precipitation of metastable phases such as GP zones and η′ phase.

强变形导致回归后的合金在再时效处理时可再次沉淀析出第二相粒子，但析出相的析出顺序与强变形后合金的晶粒尺有相关，当晶粒细化到某一临界尺寸以下时，析出顺序发生改变，非均匀形核的平衡相可抑制GP区、η′亚稳相等前期粒子的析出。

And a method to determine the limit balance status of the slope under explosions based on the plasticity zones transfixion of the slope is proposed. And the factor of safety of the slope is computed using the strength reduction technique and proposed method.

提出了通过分析爆破荷载作用下边坡塑性区贯通与否并辅于边坡关键点位移收敛与否来确定反倾岩体边坡临界状态的方法，并结合强度折减法确定了爆破荷载作用下台山反倾岩体边坡的安全系数。

The relationship between slope and upslope drainage area is derived by regression analysis, from the relationship the characteristics of gully initiation have been analyzed. Combined with the land use information, land use impact on gully initiation threshold has also been studied.

对坡度和上游汇水面积数据作回归分析，得到坡度和上游汇水面积的关系，进而分析研究区内切沟发育的特点；结合研究区土地利用状况分析土地利用对切沟发育临界条件的影响。

During SCC of type 310 austenitic stainless steel in MgCl〓 solution at 115℃, corrosion process can enhance dislocation emission, multiplication and motion. Stress corrosion microcrack nucleates in the dislocation free zone or at the tip of the crack when the corrosion-enhanced dislocation emission and motion develop to the critical condition.

本文所得主要结论如下： 1.310不锈钢在沸腾MgCl〓溶液中SCC时，腐蚀过程能促进位错的发射、增殖和运动，当其达到临界条件时，SCC微裂纹就会在无位错区中不连续形核或从原裂纹顶端连续形核；由于介质的作用，纳米级微裂纹并不钝化成空洞和缺口，而是解理扩展。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了