最大变化

The soil urease and invertase activity effected by Hg was investigated in different fertility soils. The results show that soil urease activity、maximum reaction velocity (Vmax、Vmax/Km) and reaction velocity constant k have remarkably negative correlation with Hg concentration so that these can be used as ecological indexes of soil polluted by Hg, Km changes a little indicating that the reaction mechanism of Hg and urease is nonreversible competitive restraint. Urease of low soil fertility is more damaged by Hg than that of high soil fertility, with severe pollution at Hg concentration of 6.00 and 14.79mg/kg respectively; while invertase is less sensitive to Hg than urease. Cultural time has less influence on the relationship of soil enzyme and Hg concentration.

对不同肥力土壤脲酶和转化酶活性受汞影响进行了研究，结果显示，土壤脲酶活性、最大反应速度Vmax 、Vmax/Km和反应速度常数k与汞浓度呈现显著或极显著负相关关系，表明其可作为土壤汞污染的生态指标；米氏常数Km则变化较小，表明汞与脲酶作用机理为不可逆竞争抑制；低肥力土壤脲酶比高肥力土壤脲酶受汞毒害作用更强，当汞浓度分别为6.00和14.79mg/kg时即达到严重污染；而转化酶对汞的敏感性较差；培养时间对土壤酶与汞浓度间关系影响较小。

By taking advantage of normal mapping, only the silhouette to current viewpoint is refined and transmitted, and consequently the amount of patches needed to transfer each frame is greatly reduced.

该算法利用法向映射提高传输和绘制的效率，然后随着视点的变化动态细化和传输当前视点下轮廓部分的参数面片信息，从而最大限度地减少了模型传输时面片的数量。

Axis of maximum moment of inertia = the axis of figure: because the Earth is not a perfect sphere, but is physically an oblate spheroid, the position of the axis of figure is not a precise constant, but is affected by the constant change in the earth's distribution of total mass:(ie, by ocean tides, atmospheric cond- itions, plate tectonic movements, etc.).

轴最大转动惯量=形状轴：因为地球不是完全的球形，而是一个扁球体，形状轴的位置不是精确的常量，而是受地球总质量的分配持续变化作用：（也就是，受海洋潮汐、大气环流、地质板快运动等等）。

The changes in organismal fitness were linked directly to incremental increases in enzyme stability and activity maxima and corresponded to the narrow temperature ranges where each mutant enjoyed success within the overall population.

有机体适应的变化与酶稳定性和最大活性的增加直接相关，并且对应于在所有群体中每个成活的突变型的狭窄温度范围。

The model is applied to simulate the concentration field of TP nearLongbaohe outfall of Wanzhou reach in Three Gorges Reservoir.

将浑水水质模型应用于三峡库区万州江段龙宝河排污口附近总磷浓度场的模拟，模拟结果表明：三峡水库蓄水后，过流断面加大，水体流速减缓，库区江段的岸边水质将变差，其中以枯水期岸边水质的变化幅度最大。

In this paper a method for design of constant phase shift network, which can be used to improve the dynamical characteristics of feedback systems with variable open-loop gain, has been proposed.

本文讨论用于改善开环增益可能会有较大变化的反馈系统的动态特性的"等相移网络"的设计方法，并采用了优化的计算程序来求出极、零点的最佳位置，从而得到了一个在计算机上实现的最优设计法。

The changing rule of the hardness of SZ-01 photosensitive resin surface after curing with temperature, illumination distance, and illumination time was studied with orthogonal experiment and recurrent neural network methods. A group of reasonable technique parameters were found with genetic algorithm optimization, which can make the hardness of photosensitive resin after curing the highest.

综合利用正交试验和递归神经网络的方法，研究了光敏树脂SZ-01在光固化成形后表面硬度随着环境温度、光照距离及光照时间的变化规律，并利用遗传优化设计的方法，找到了一组合理的工艺参数组合，使得光敏树脂固化后的表面硬度达到最大。

External driving force posed the most intensive impact on the change of plowland areas, but rather lower on bare rock land.

外驱动力因素对耕地面积变化的影响最大，对裸岩地的影响相对较弱。

On the basis of the above analysis, the temporal and spatial distribution features of precipitable water vapor in GPS in North China are analyzed.

结果表明：可降水量在时间上先升后降，7、8月达到最大值；在空间上由北向南递增；可降水量的日变化特征不十分显著，仅表现为小幅度波动。

Enhancing pump efficiency Pump efficiency refers to the utilization degree of shaft power of prime mover by fluid.

水泵的效率随水泵工作状态点的不同从0至最大效率间变化。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。