数量级

The purity of SAM product was higher than 95％, and the overall recovery of SAM sulfate and SAM double salt of sulfate and p-tosylate were 60％ and 50％, respectively.

通过筛选，获得了对SAM有较好选择性离子交换能力、较易洗脱和再生的争光D113弱酸型阳离子树脂，研究了温度、pH等对SAM离子交换的影响，根据SAM在弱酸阳离子树脂D113上的等温交换平衡行为表现出较强的可逆性，考虑到交换基的弱电解质性质以及结合Donan膜平衡理论，建立了考虑pH影响的可逆离子交换平衡模型，该模型可以较好地描述SAM平衡浓度、pH对离子交换平衡的影响；通过对动态离子交换过程的研究，得到了SAM在D113树脂内的有效扩散系数的数量级为1.0E-9cm〓/s～1.0E-8cm〓/s。

Dunbar argues that when the size of a social group increases, the number of different relationships in the group may increase by orders of magnitude.

邓巴认为，当一个社会群体的大小增加，群组中各种不同关系的数量将按数量级增加。

The results show that not only the growth of C. wenyujin in lime soil is possible, but also the biomass, yield of medicinal part, the content of oil from the tuber and its medicinal components are higher than those from red soil. The C. wenyujin from lime soil quickly assumes etiolation during initial growth period. Surprisingly, the lusty leafs of C. wenyujin planted in red soil turn to pale and brown flecks occur in the leafs with the fertilization of N, P, K. It is concluded that C. wenyujin can be planted in lime soil; C.

结果表明：温郁金不但可以在石灰土上生长，而且其药用部位的产量、莪术油的含量及莪术油中主要药用组分β-榄香稀等的含量都较大；石灰土上生长的温郁金在生长前期较快地表现出老叶明显发黄的缺肥症状，而红壤植株在追加N、P、K 3种大量元素后功能叶子呈现黄白色，且夹带有褐色斑点的缺肥症状；石灰土中Fe元素有效态含量比红壤低一个数量级，但在石灰土上种植的温郁金植株其Fe元素含量并不比红壤上的低。

A data acquisition and data analysis software for the fast fluorscence kinetics fluorometer of our laboratory is redesigned and recompiled using assembly and BASIC language. The data acquisition rate in the fast rising part of the fluorescence kinetics curves is one order faster (100μs/point) than the old one. It can measure fluorescence parameters, such as Fo and Fi more accurately for calculation of the relative content of inactive PSⅡ, etc.

用N80-BASIC语言结合汇编语言重新编写了本室快速叶绿素动力学荧光计的测控程序，使快速荧光上升曲线的采样速度提高了一个数量级（达到100μs／点），可对Fo、Fi等关键荧光参数进行精确测定，为无活性PS Ⅱ中心相对含量的准确测定奠定了基础。

In other-words, the mean free path of the photons became on the order of the size of the universe.

换句话说，光子的平均自由程成为跟宇宙尺度一个数量级的。

At this pressure it is found that the mean free path for electrons of a few volts energy is of the order of 1cm.

在这个压强下，我们发现能量为几伏特的电子的平均自由程的数量级为1cm。

Fluxgate magnetometer: An instrument capable of detecting changes in the geomagnetic field of the order of one gamma.

磁通门磁力仪：能检测到一伽马数量级的地磁场变化的一种仪器。

It is found that the effects made by gravitation is so small that can be ignored in observation.

但是这两种情况下的改变量的数量级都很小，因此得出结论：在目前的实验条件下，对于检验光的真空色散效应时，引力场造成的影响是完全可以忽略的。

Generally, in grazer systems, that part of the trophic structure of a community which depends on the consumption of living plant biomass, secondary productivity is an order of magnitude less than primary production resulting in a pyramidal structure.

一般说来，在牧食者系统中，次级生产力是群落营养结构中，依存于消费活植物生物量的那一部分，在数量级少于植物生产力，从而形成了金字塔结构。

Although the concentrations of P and Ca were higher in snow, no difference was found between the rainfall and hailstone.

铵态氮、K和 Mg等元素在雨水中的含量最高。P和 Ca以雪水的含量最高，与雨水和冰雹相比不存在数量级差异。

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。