针质

There are three effects that may be important in producing this trend. First, lowtemperature oxidation preferentially affects the finer single-domain magnetites responsible for the Hopkinson peak, which is therefore suppressed in the more oxidized loams. Second, the possible production of uniaxial magnetite with shape anisotropy can also lead to a relatively muted Hopkinson peak. There is, additionally, a third alternative, and the one preferred here, that the natural alteration processes involved in pedogenic susceptibility enhancement have probably depleted the supply of ironbearing precursor phases, so that less new magnetite is formed on heating.

产生这种特殊热磁性质的可能原因如下：第一，成土过程中的低温氧化作用减弱了磁铁矿的Hopkinson效应；第二，可能是成土过程中生成的一向延长的针状磁铁矿颗粒表现出较弱的Hopkinson效应；第三，随着成土作用增强，现代黄土、黑垆土中的硅酸盐、粘土矿物因受土壤化作用分解而越来越少，加热过程中分解产生的磁铁矿造成的磁化率增强相对于其初始磁化率也就越来越小，从而产生越来越弱的Hopkinson/alteration峰，本文认为这是最主要的原因。

Calyx teeth obsolete or minute; vittae 1 to several in each furrow.

叶2-3回羽状，末回裂片卵状披针形到线形，浅裂的有锯齿或的通常；翅加厚，但不是木栓质使在基部扩大。

Group analysis of asphalt in BRA suggests that the content of the asphaltine is very high but the pectin content is lower compared with commo...

不同温度的针入度结果则揭示了布敦岩中的沥青能明显改善基质沥青的高温性能，但同时降低其低温性能。

There are some microtubular and spiral goethites scattered among the iron hydroxide colloidal cloud and submicrometer-size colloidal particles.

电子显微分析观察到在非晶质氢氧化铁凝胶团和亚微米级微粒聚集体中存在特殊的显微管状和螺旋状针铁矿，显示出明显的生物矿化特征。

Perianth tube less than 1.5 cm.49(48) Spathes green, lanceolate, soft, membranous, apex finely acuminate

绿色，披针形，柔软的佛焰苞，膜质，好渐尖的先端 18 IRIS ruthenica 紫苞鸢尾

Calyx teeth conspicuous, ovate-triangular; vittae 1 in each furrow.

羽状叶1-2回羽状或三出，末回裂片长披针形，全缘；果棱木栓质膨大的在基部。

The effect of addition rare-earth metal,Ca and Mg elements on the microstructure,toughness of and the formation of intragranular acicular ferrite in hot affect zone of large heat-input welded low alloy non quenched-tempered steel plate was investigated.

研究了低合金高强度非调质中厚板钢中添加稀土和Ca、Mg微量元素对大线高能焊接热影响区显微组织微细化和晶内针状铁素体形成的影响。

Culm sheaths deciduous, leathery or thickly papery, setose; ligule truncate; blade large, triangular or lanceolate, rarely strap-shaped.

落叶的竿箨，革质或厚纸质，具刚毛；叶舌截断；叶片大，三角形的或披针形，很少舌状。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。