数量级

In this paper, based on an optimum difference operator for spatial differential given by Holberg, an optimum difference method of modeling crosswell elastic wavefield is put forward, which adopts the staggered-grid technique and calculates the wavefield at different grid points. When the half length of optimum difference operator is taken as four to six points, the required number of grid points per wavelength equals to three, crosshole elastic wavefield numerical modeling can attain satisfied accuracy.

本文以Holberg提出的一种空间微分的最佳差分算子为基础，采用交错网格技术，提出了一种模拟井间弹性波场的最佳差分法，该方法能在大空间网格点上得到精确的波场值，当最佳差分算子的半长度取4～6个点，每个波长只采3个样点时，井间弹性波场的模拟就可以得到满意的精度，其计算速度比常规有限差分法至少快一个数量级。

The atomic oxygen perpendicular distribution of the middle and upper atmosphere (100~500km) is simulated quickly and effectively based on the hydrostatics and mathematics software. The simulation results are compared with the data from MSISE-90 model, and they are coincident in order with certain difference in values.

基于修正后的流体静力理论和数学软件，对中高层大气100~500km 高度范围内氧原子的垂直分布进行了快速有效的模拟，将模拟结果与MSISE-90 模型提供的数据作了比较，二者数量级相等、仅数值有一定偏差。

Usually written in a number of 10 exponential form, the index number is the number of orders of magnitude.

通常把一个数量写成10的幂指数形式时，指数的数目就是该数量的数量级。

The maximum absorption peak was at long wavelength (＞650nm), extinction coefficient achieves 10〓 degree, which was one degree higher than HpD. The study has revealed that CPD photosensitizer appeared blue movement under the relevant body environment. The spectra parameters provided basis for selecting light source of PDT. Measurement system which measured singlet oxygen and its quantum yields within the infare range had been set up and the quantum yields of singlet oxygen for CPD were reported: the quantum yields of singlet oxygen for CPD〓 was the highest (φ=0.83) while he quantum yields of singlet oxygen for CPD〓 was the lowest (φ=0.83). Photobleaching's half life time was studied.

给出了此类光敏剂的光谱指认和光谱参数：其吸收光谱峰值位于长波红光区(＞650nm)，摩尔消光系数达10〓LmoL〓cm〓量级，比血卟啉衍生物高出一个数量级；研究揭示了此类光敏剂在近似体内环境下光吸收的蓝移现象，为光动力治疗光源的选择提供了依据；建立了在近红外光谱区中测定敏化单态氧的光谱和量子产率测量系统，报导了该类光敏剂敏化单态氧的量子产率，其中CPD〓的单态氧量子产率最高(φ＝0.83)，CPD〓的单态氧量子产率最低(φ＝0.51)；测定了二氢卟吩类光敏剂的光漂白半衰期。

HBTMPDTP-TBPkerosene keeps its ability to separate Am from lanthanides till a total dose of 10〓Gy, which is one order of magnitude higher than that of HBTMPDTP-kerosene.

HBTMPDTP-TBP-煤油具有良好的辐照稳定性，吸收剂量小于10〓Gy时，萃取性能不变，允许吸收剂量比HBTMPDTP-煤油提高一个数量级。

Fast Line Integral Convolution with constant filter kernels as well as with triangular filter kernels are presented,which are faster than the original Line Integral Convolution approach about an order of magnitude in rendering actual vector fields.

针对这个问题实现了基于常数滤波卷积核的快速线积分卷积算法，提出并论证了基于三角形滤波卷积核的快速线积分卷积算法，对于实际矢量场，上述两种方法均将运算速度提高了一个数量级，而基于三角形滤波卷积核的快速线积分卷积算法的结果使图像更加平滑。

The effects of the Lorentz force could be interpreted as a process of radial transfer.

在开断大电流时，Lorentz力与惯性力在数量级上是相比拟的，其影响大于SF〓气体粘滞力的影响。

Quantum effects in Si n-MOS inversion layer at high substrate concentration. Solid-State Electron, 1990, 33(12): 1581～15854 Van Dort M J, Woorlee P H, Walker A J, et al. Influence of high substrate doping levels on the threshold voltage and the mobility of deep-submicrometer MOSFET's.

结果表明：在高衬底掺杂浓度时，即使在弱反型区量子化效应也能导致载流子分布和电流产生明显的降低(例如： 1.5×1018 cm-3时，可降低一个数量级以上)，从而导致开启电压的升高。

So, that's the magnitude of the issue we're talking about.

所以，那是我们讨论的数量级。

The calculated molar heat capacity at constant volume is shown to be much different than that at constant pressure.

结果表明：液体的内压达到100MPa数量级，从而导致液体摩尔定容热容与摩尔定压热容存在很大差异。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。