查询词典 instability constant

All nature, from the smallest thing to the biggest, from a grain of sand to the sun, from the protista to man, is in a constant state of coming into being and going out of being, in a constant flux, in a ceaseless sate of movement and change.

自然中所有事物，从最小到最大，最一粒沙到太阳，从原生物到人，是处在一个不断生成和消亡状态中，不断变迁，永远不停的运动和变化中。

Rna - Rns, see "Partitioning of net radiation", for multiple plants the fraction of radiation to each plant is calculated in the radiation section, see "Partitioning of radiation between plants", es is the vapour pressure at saturation, ea is the actual vapour pressure,ρa is air density, cp is the specific heat of air at constant pressure, Lν is the latent heat of vaporisation,Δ is the slope of saturated vapour pressure versus temperature curve,γ is the psychrometer "constant", rs is an "effective" surface resistance and ra is the aerodynamic resistance.

潜在蒸腾量 Etp 根据Monteith(1965)给出的彭曼联合方程形式计算：式中： Rn 为对于蒸腾的有效净辐射量(也就是 Rna - Rns ，见"净辐射划分"-Partitioning of net radiation，对于多重植被，每一株植物的辐射比率的计算见辐射一节的"植物间的辐射划分"Partitioning of radiation between plants)； es 为饱和水气压；ea 为实际水气压；ρa 为空气密度； cp 为常压下的空气比热；Lν为汽化潜热；Δ为与温度曲线饱和水气压关系曲线斜率；γ为干湿球湿度计"常数"；rs 为"有效"表面阻力；ra 为气动阻力。

Pyrometallurgy and hydrometallurgy are introduced in this article,pyrometallurgy,ammoniacal leaching and high-pressured acid leaching has obvious disadvantage.Craft simply,energy consumption low,the operation easy to control,investment low are the merits of the constant-pressured acid leaching.It is belived that constant-pressured acid leaching w...

本文介绍的红土镍矿处理工艺有火法工艺和湿法工艺，其中火法工艺和湿法工艺中的氨浸法、高压酸浸法存在明显缺点，而常压酸浸法有工艺简单、能耗低、操作易于控制、投资少等优点，将会有很好的发展前景。

Capillary Electrophoresis as a Method for Determining Hydrolysis Rate Constant of Raffinose Capillary electrophoresis was first employed for the determination of hydrolysis rate constant of trisaccharide raffinose.

测定棉子糖水解速率常数的毛细管电泳方法毛细管电泳首次用于测定三糖的水解速率常数。

It avoids the disturbance of the constant voltage source by imp roving the constant voltage source. It has high p recision and resolution, the measure resolution can be 0101℃, and p recision is ±011℃. The circuit has wide app lication with simp le structure, low cost, low power dissipation and small volume. It can be used in the p recise temperature measurement systems,such asmultip le thermal conductivitymeasurement.

用改进的电压测量电路间接测量热敏电阻的阻值，有效地克服了电压源的干扰，测量精度高，测量分辨率可达0101 ℃，测温准确度可达±011 ℃；并且该电路结构简单，成本低、功耗小、体积小，具有很高的实用价值，可用于需要精密测温的系统，如热导率测量仪的温度测量中。

In general we have two kinds of dielectric constant: the absolute dielectric permittivity, V the relative dielectric permittivity r, Vr = 0 = 1 , 0 means the vacuum dielectric constant, dielectric electrode means of EV \\ V \\ rate.

一般我们有两种介电常数：电介质的绝对介电常数，电介质的相对V介电常数r，Vr＝0＝1＋，0指真空中的介电常数，指电介质的电极化EV\V\率。

Under constant current I0 A the spin torque will twist the entire wire along the AB axis up to a small angle θ0, until it is balanced by the elastic restoring torque τ e =κθ 0 , where κ is a Top View positive constant, at the two fixed points.

有恒定电流 I0 时，自旋力矩将导线以 AB 为轴扭转一小角θ0，直到被 A，B 点的弹性力矩τ e =κθ 0 抵消为止，其中κ是正常数。

The constant nutritional arteries of the great saphenous vein-saphenous nerve on the medial foot: Perforator at medial side of the tendon of the tibialis anterior ,it is （2.27±0.43）cm distal to the intermalleolar line .it passes across the medial side of the tendon of the tibialis anterior and pierces the deep fascia between the upper and lower bundle of the inferior extensor retinaculum with a diameter of （0.72±0.04）mm;The length of it after piercing the deep fascia is （7.3±0.6）mm,It has an emerging rate of 95%; Perforator between tendons ,it is （3.02±0.39）cm distal to the intermalleolar line;it pierces the deep fascia between the tendons of tibialis anterior and extensor digitorum longus with a diameter of (0.57±0.06)mm ;The length of it after piercing the deep fascia is （7.4±0.6）mm .It has an emerging rate of 94%; A constant distal fascial perforator pierces the deep fascia between abductor hallucis muscle and medial side of first metatarsal bone （1.97±0.23）mm distal to the first metatarsophalangeal joint with a diameter of (0.50±0.03)mm.

足内侧大隐静脉-隐神经营养血管近端来自内踝前动脉较为恒定，外径较大的穿支有：踝间线远端（2.27±0.43）cm，经胫骨前肌腱内侧、伸肌下支持带上、下束间穿出，外径(0.72±0.04)mm ，穿出深筋膜的长度为（7.3±0.6）mm，出现率为95%；踝间线远端（3.02±0.39）cm，经胫骨前肌腱与趾伸肌腱穿出，外径(0.57±0.06)mm，穿出深筋膜的长度为（7.4±1.2）mm ，出现率为94%；3远端来自交通支最为恒定，外径较大的穿支于踇展肌与第一跖骨内侧缘之间穿出深筋膜，距第一跖趾并节近端（1.97±0.23）cm，直径（0.50±0.03）mm，穿出深筋膜的长度为（6.5±0.5）mm，出现率为100%。

It was found that the slug head rose in the riser at a constant velocity in the slug formation stage.At the same time,the direction of slug tail movement was opposite to the flow direction,and the tail velocity kept constant when flowing through the inclined pipe.

结果表明：在液塞形成阶段，液塞速度随气液相折算速度的增大而线性增大；当气、液相折算速度恒定时，液塞速度随下倾管倾角的增大而稍有增大。

At the same time a subdivision method for constant amplitude rotating current vector is adopted to achieve the equal subdivision control of stepping motor's constant torque.

同时采用电流矢量恒幅旋转的细分方法实现了步进电机恒转矩均匀细分控制，提高了步进电机的分辨率和运行稳定性。

These rules reflect some inherent feature of self and nonself, and they are the basic detection criterion of GECISM.

这些规则反映了"自我"和"非我"的内在特征，是GECISM进行"非我"检测的判据。

Until today, the media from China and the outside world still uses the term "Post 89". Regardless to whether it is for commercial gimmick or convenience, everybody still remember "Post 89", a term which carries a strong Cantonese accent.

时至今日，国内外艺术媒体还是在沿用&后八九&这个称谓，不管当初是为了商业噱头还是容易上口好记，反正大家现在是记住了&后八九&这个广东口音很重的词。