成双的

Macropore characteristics of main type soil--krasnozem, crimson loam, phaeozem and brown loam was firstly studied using soil section photography on the horizontal and vertical profiles in order to farther investigate the preferential transportance of soil water and solute.

中文题名土壤大孔隙特征的研究副题名外文题名 Characterizing macropores in soil 论文作者刘伟导师区自清研究员学科专业土壤学研究领域\研究方向学位级别博士学位授予单位中国科学院沈阳应用生态研究所学位授予日期2001 论文页码总数165页关键词土壤物理土壤大孔隙馆藏号BSLW /2003 /S152 /2 本文应用双剖面土壤切片成像法结合土壤优先水流穿透曲线，首次研究了4种主要地带性土壤：红壤、赤红壤、黑土和棕壤的大孔隙特征。

However, if the conventional isothermal sooting flame assumption is followed (where the twocolour emissivity ratio is inversely proportional to the pyrometer wavelength ratio), then the calculated volatile flame temperatures will be lower by ~250 K.

不过，如果采用传统等温碳烟火焰的假设（双色辐射率比值与高温计波长比值成反比），挥发物火焰的温度将会降低250K。

The light, four-into-one headers discharge in to new, close-coupled catalytic converters and through to new "bi-modal" mufflers.

轻，四成一标题履行新的，紧耦合催化转化器，并通过新的&双峰&消音器。

The structural features of borates were summrized and the correlations between the birefrigence and the crystal structure were investigated.

总结了含B－O基团化合物的成相规律，研究了双折射率与晶体结构之间的关联。

The shoes in question -- an 18-year-old pair of hand-made leather Brogues that have only been re-soled once -- were made by Church's in Northampton, central England.

这双穿了18年的&传奇&粗革皮鞋由英格兰中部北安普顿的Church's鞋厂手工制作而成，18年间只被换过一次底。

The shoes in question -- an 18-year-old pair of hand-made leather Brogues that have only been re-soled once -- were made by Churchs in Northampton, central England.

这双穿了18年的&传奇&粗革皮鞋由英格兰中部北安普顿的Churchs鞋厂手工制作而成，18年间只被换过一次底。

In this experiment, the effects of several factors on bromelain activity were investigated.

本文首先研究了构造双水相体系的成相组分及不同操作条件对菠萝蛋白酶活性的影响。

GM-type refrigerators have been used for over 10 years on magnetic resonance imaging cryostats for the purpose of reducing the helium boiloff rate.

旨在降低氦蒸发率的双级GM制冷机在磁共振成像低温恒温器中应用已有10多年的历史。

After process purification DNA needs once more magnetism bead purification processing, the magnetism bead under the specific liquid environment with the DNA adsorption, is fixed under the magnetic field function one side the centrifuge tube, only has DNA and the magnetism bead unifies in the together part is retained, then the use specific elutes the fluid clean, finally uses double steams the water to dissolve DNA, by now the magnetism bead and DNA were separated from, DNA preserved in the liquid, this obtained has purified, the high grade skeleton DNA sample.

在处理洗净DNA 需要一次更多磁性小珠洗净处理之后，磁性小珠在具体液体环境之下以DNA 吸附，是固定的在磁场作用一个边之下离心机管，只有有DNA 并且磁性小珠成一体在部份一起被保留，那么用途具体洗脱流动性干净，最后使用双词根水溶化DNA，在现在以前磁性小珠并且DNA 被分离了从， DNA 被保存在液体，这被获得净化了，高级最基本的DNA 样品。

The results show that intensity of combined beams is closely related with diffraction efficiency and location of two gratings.

分析表明汇合级光强与两光栅具体的衍射效率和双光栅成像时的位置密切相关。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！