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The dominant mechanism of the periodical variation of the Kuroshio bend and the breaking off of anticyclonic eddies is the frontal instability.
非线性平流作用是吕宋海峡黑潮弯曲发生周期性变化的主要原因，吕宋海峡黑潮锋附近的锋面不稳定机制是决定黑潮弯曲周期性变化及反气旋涡从黑潮弯曲中脱落的主要物理机制。
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Based on a second order damped oscillation differential equation for a missile and upon a detailed analysis of the balance sideslip angle under commands from several different ways of control, the paper proposes some significant empirical criteria for the static stability design of anti tank missiles.
根据弹体摆动运动的简化数学模型，通过对几种控制方式不同的反坦克导弹在指令作用下的平衡侧滑角等数据进行分析研究，得出了反坦克导弹静稳定度设计的一个经验性法
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Main contents and conclusions are: 1 The ionization current was measured continuously by a charge-integration method with a computer after the introduction of radon into the chamber.
主要内容及结论：1充氡后利用计算机连续进行电离电流累积测量，得到了精细的电流随时间的变化曲线，可清楚看出氡及其子体的生成衰变造成的电离电流的生长—稳定—衰减过程，与理论计算值进行了比较，由电离电流衰减速度的变化得出氡吸附作用的影响，并测量到电离室冲洗后氡的反扩散现象；2由已知活度的标准源定出相对测量的刻度系数K值，K=24.62 Bq／pA，对同一个监测源以半年为周期进行多次测量后得出稳定性符合要求；3通过测量电离电流和气压的关系曲线以及不同气压下的饱和曲线，确定了常规的工作条件；4测量了盐酸清洗电离室内表面降低本底的效果；5不确定度分析表明相对测氡的扩展不确定度(k=2)小于5％，由本底涨落得出探测下限为0.5 Bq；6理论上对壁损失修正进行了计算，实验上保持电离室工作在饱和区的情况下，测量了不同气压下电离电流的变化，从中得出了壁损失随气压变化的规律，可以看出，电离电流的实测值和计算值随气压变化规律基本一致；当气压大于125 kPa时，端效应等其它因素造成的影响不大于2％，因而在此工作条件下，测量电离电流后通过计算修正壁损失可以实现近似的绝对测氡，提出了进一步提高绝对测量准确度的方法。
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Low molecular copolymers of stearyl methacrylate and methacrylic acid were used as stablizer for reverse phase emulsion polymerization.
采用具有增稠和抗电解质作用的丙烯酸聚氧乙烯酯活性单体和具有聚合稳定作用的高分子表面活性剂，通过反相乳液聚合法合成了涂料印花用丙烯酸系增稠剂。
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The simulative model of temperature field and stress field in concrete , Heat and moisture coupling、Parallel simulative calculation of concrete with water pipe cooling、 Parallel feedback analysis of thermal characteristic parameters, and stress intensity factor of induced joint, which are the sixty-four-dollar questions, are studied in this dissertation. The main contents of this dissertation are as follows:(1)Based on the past and current research work, the calculation theory of the transient temperature field and creep stress field of mass concrete which self temperature influence is considered is deduced. The couple effect between the temperature field and humidity field of concrete, is considered on the basis of conservation law of water and energy, and the coupled formulation which coefficient is not constant of the heat and moisture in concrete is deduced. The calculation theory and model which is theoretically strict for solution to thermal problem in concrete with water-cooling pipes are recommended.
本文主要针对混凝土的温度场应力场仿真计算模型、热湿耦合、水管冷却问题的并行仿真、混凝土温度参数并行反演分析以及诱导缝应力强度因子计算等混凝土大坝温度应力数值仿真的关键技术进行了较为深入的研究，全文主要内容如下：(1)在现有研究基础上，推导了考虑自身温度影响的混凝土非稳定温度场和徐变应力场的计算理论；基于水分质量守恒和能量守恒原理考虑混凝土温度场和湿度场的耦合作用，推导了混凝土的变系数热湿耦合方程，并建立了相应的计算模型；引用严密的水管冷却混凝土温度场的计算理论和计算模型，比较了两种简化计算方法用于水管冷却混凝土仿真计算的不足。
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Initially, if the thermal wind vorticity of wind field is larger than that of the temperature field, and the horizontal scale of the disturba...
这种不稳定的作用，可在较短的时间内(约24小时)造成上层是反气旋、下层是气旋和中心为暖中心的猛烈的涡旋形成。
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The calculated results show that azido in azides has linear structure , the most optimized CaN6 has linear structure , and the most optimized (CaN6)n (n=2～5) clusters have chain structure of perpendicularity of approximate diamond composed by two azido with two Ca atoms . The middle N atoms of azido show positive, the N atoms at both ends of azido show negative, and the N atoms effected with Ca atoms directly show more negative . There is strong ionic bond between the Ca and N atoms. The IR spectra of the most optimized (CaN6)n (n=1～5) clusters have four vibrational sections , the whole strongest vibrational peak lies in 2195～2280cm-1,and the vibrational mode is anti-symmetric stretching vibration of N-N bonds in azido . Stability analysis show that (CaN6)3 and (CaN6)5 clusters are more stable than other clusters .
结果表明，叠氮化合物中叠氮基以直线型存在，CaN6团簇的最稳定结构为线型结构，(CaN6)n(n=2～5)团簇首先由两个叠氮基与两个Ca原子构成一个近似菱形，再由菱形相互垂直形成链状最稳定结构；叠氮基中间的N原子显示正电性，两端的N原子显示负电性，且与Ca直接作用的N原子负电性更强，金属Ca原子和N原子之间形成很强的离子键；(CaN6)n(n=1～5)团簇最稳定结构的IR光谱分为4个部分，其最强振动峰均位于2195～2280cm-1，振动模式为叠氮基中N-N键的反对称伸缩振动；稳定性分析显示，(CaN6)3和(CaN6)5团簇相对于其他团簇较为稳定。
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Thus the working mechanism of the rigid foundation has been demonstrated. The back pressure varies much at initial stage, which largens in corner point area and lessens in center area.
刚性基础在荷载作用下，计算区域基底反力在加荷初期变化比较大，角点区域反力变大，中心区域反力变小，随着时间的增长，反力逐渐趋于稳定。
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It shows that the stability of continuous purlins is controlled by bottom flange in middle span within wind suction.
分析结果表明连续檩条的稳定验算由风吸力作用下跨中下翼缘反弯点之间的受压区控制。
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hemostat：血管钳
而这种错误的执剪方法不具有良好的三角形稳定作用,从而直接影响动作的稳定性剪割组织时,一般采用正剪法,也可采用反剪法,还可采用扶剪法或其他操作(图3-9)血管钳(hemostat)是主要用于止血的器械,
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antihum device：噪声消除器,静噪设备交流声抑制器
防晕[光]作用 anti-halation | 噪声消除器,静噪设备交流声抑制器 antihum device | 稳定的,防震的,阻尼的,防摆动的反搜索的 antihunt
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deflocculate：反絮凝
deflocculant 胶体稳定剂 | deflocculate 反絮凝 | deflocculation 反团聚作用