分脉

The analysis of lamprophyrespetrology chemistry reveals that it is a series of high potassium- potassium dike rock,it is abandunt in alkali(K2O,Na2O)and has a large reducing capacity.The diagrams of the major-element variation shows that the geochemical compositions-variations of the major oxides have vague general rules of homologous magmatic fractional-crystallization.the pearce diagram of trace elements shows it intensively enriched in LILE,intensively depleted in coherence elements(such as CrNi.et al).

煌斑岩的岩石化学分析表明，乳山地区与金矿成矿相伴生的煌斑岩为高钾质-钾质的碱性脉岩系，富碱(K_2O、Na_2O)，具较强的还原能力(FeO含量均远高于Fe_2O_3含量)，在哈克图解上，主要氧化物的变异规律表现出岩浆分离结晶演化的特点；微量元素的Pearce图呈现强烈的富集LILE，强烈亏损过渡族元素，稀土元素呈向右倾斜的轻稀土富集配分模式，在有关源区性质判别的图解(Cr-Ce／Sr图解和Ce／Yb-Ta／Yb比值图解)上均显示富集地幔源区的性质。

Accompanying the Jungar plate subdueted dewnwards along the northwest edge of Siberian eraton, the volatile-rich felsie biotite diorite batholiths and a lot of fracture-controlled quartz diorite vein intruded the are-back basin, Au preferently distributed within the disseminated magmatic sulfide during granitoid melt crystallization

阶段Ⅰ。华力西晚期伴随着准噶尔板块向北部西伯利亚板块的强烈俯冲，在额尔齐斯弧后盆地形成偏中性富含挥发份深源黑云英闪侵入岩及大量明显受构造控制的石英闪长岩脉，Au在岩浆结晶-分异演化过程优先在花岗岩中呈浸染状分布的岩浆碱化物中相对富集

Leaves often on upper stems or branches, glabrous; stipules deciduous, ovate, very small; petiole 1.5-12 mm; leaf blade narrowly oblong, elliptic, or oblanceolate to oblong-lanceolate, 8-20 × 2.2-4.5 cm, membranous or herbaceous, lateral veins 5-8 pairs, base attenuate or narrowly cuneate, margin crenate-serrate or undulate distally, apex acuminate; cystoliths slightly conspicuous or inconspicuous.

叶通常在上面茎或分枝上，无毛；托叶脱落，卵形，很小；叶柄1.5-12毫米；叶片狭长圆形，椭圆形，或倒披针形到长圆状披针形， 8-20 * 2.2-4.5 上部的厘米，膜质或草质，侧脉5-8 对，基部渐狭或狭楔形，边缘具圆齿有锯齿或波状，先端渐尖；钟乳体稍明显或不明显。

Shrubs; flowers growing on annual or biennial branches; thorns slightly decurved; netting veins not obvious.

灌木 花在一年或二年生草本分枝上生长；刺有点下弯；网状的脉不明显。

Research on mineral associations of gold lodes in the North China Platform indicates presence of apparent mineral zoning.

华北地台主要金矿田矿物组合空间变化规律的研究表明，中深脉状金矿床中金属矿物组合在空间上具分带性。

Inflorescence profusely branched, umbels numerous, small, 1–2 cm across, lax; bracts 2–4, lanceolate or elliptic, 3–6 × 1–2 mm, unequal, 5–7-nerved; rays 2–5(–7), 0.5–2 cm, unequal, very slender; bracteoles 5, lanceolate or elliptic, 3–4 × 1–1.5 mm, equal, 3-nerved, apex apiculate, equaling or slightly longer than flowers; umbellules 1–1.3 mm across, 5–11-flowered; pedicels 0.5–1.5 mm.

花序大量分枝，伞形花序多数，小，1-2厘米直径，疏松；苞片2-4，披针形的或椭圆形， 3-6 * 1-2 毫米，不等长，叶脉；伞辐2-5(-7)，0.5-2厘米，不等长，非常纤细；小苞片5，披针形或者椭圆， 3-4 * 1-1.5 毫米，等长，3脉，先端具细尖，稍长或近等长花；小伞形花序1-1.3毫米直径，5-11开花；花梗0.5-1.5毫米。

A theoretical model for ST type pulse tube refrigerator is set up and numerical results are achieved with this physical model.

建立了斯特林型脉管制冷机的理论模型，对其进行了相应的有限差分数值模拟，并运用此理论模型，详细分析了小孔阀和双向进气阀开度对制冷机性能的影响，为实验研究提供理论基础； 2。

Leaves 3 or 4 per ultimate branch; sheath straw-colored, glabrous; auricles and oral setae absent; ligule purple-red, ca. 2 mm; pseudopetiole ca. 2 mm; blade elliptic-lanceolate, 4–20 × 2–2.9 cm, secondary veins 4–8-paired, base cuneate, margin serrulate, apex acuminate.

每末级的分枝留下3或4；鞘稻草色，无毛；叶耳和口头的刚毛无；叶舌紫红色，约2毫米；假梗约2毫米；叶片椭圆状披针形， 4-20 * 2-2.9 厘米，次脉4-8配对，基部楔形，边缘有细锯齿，先端渐尖。

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。