二层的

About two-thirds of the world's people survive primarily by eating wheat rice , and corn at the first trophic level , mostly because they cannot afford meat .

大约有三分之二的世界人口主要生存是由吃小麦大米，玉米在第一营养层，主要是因为他们负担不起肉。

The main pathways of petroleum secondary migration are sandstone, fault surface and unconformity surface.

油气二次运移的主要通道为砂岩层、断层、不整合面。

Such as:there is no universalistic trust in our traditional cultural and the Chinese hardly trust any person out of his family or strangers.

主要表现在两个层面上：一是中国传统文化缺少普遍信任成长的因子；二是中国人对陌生人和外人极度不信任或者说根本不信任。

Detailed investigations were carried out on the upper undisturbed sediments from Erlongwan maar lake, NE China, which are better annually laminated sediments. Varve couple appears as darkand lightcoloured layers.

通过对东北二龙湾玛珥湖顶部无扰动岩心显微研究，证明此岩心发育有良好的年纹层。

7 Month blossoms, beautiful sheet is unripe, bury is in lotus Cong Zhong, do not have beautiful Ting or provide; of short beautiful Ting to luxuriant piece 1, calyx of line form; appears prism state, grow 4-5 millimeter, provide corollaceous white of apparent; of 5 green arris or pink, diameter 5 millimeter, laryngeal amaranth.

叶不明显二型，外层卵状披针形或卵形，长2-3毫米，内层线形或倒窄披针形，与外层叶等长。5~7月开花，花单生，埋藏在莲座丛中，无花葶或具短花葶；苞片1枚，线形；花萼似棱柱状，长4-5毫米，具明显的5条绿色棱；花冠白色或粉色，直径5毫米，喉部紫红色。

For dioctahedral micas, interlayer potassium is not easily released because of the structures being stable, and very few researches can be found corresponding to potassium release after activation.

二八面体型云母结构稳定，层间钾不易释出，活化释钾的难度也较大，而且这方面的研究也不多。

The preparation of layer crystalline sodium disilicate from sodiun silicate made by mirabilite is studied.

层状结晶二硅酸钠是一种性能优异的无磷洗涤助剂，其不会造成水质富营养化问题。

Firstly, partial sulfonated polystyrene were prepared by solution polymerization with the raw materials of styrene, sodium styrene sulfonate and divinyl benzene; Secondly, the SPS/OMMT nanocomposites were prepared by intercalation polymerization with the monmers and organically modified montmorillonite.

首先，利用NMP为溶剂，BPO引发苯乙烯、苯乙烯磺酸钠、二乙烯基苯溶液共聚；同时，采用高分子的单体与有机蒙脱土插层聚合制备了磺化聚苯乙烯阳离子树脂／蒙脱土复合材料。

METHODS: The rats in the two groups were anaesthetized by intraperitoneal injection of 10 g/L urethane (1 g/kg) and the chest was opened to insert a tube into the ascending aorta for perfusion with 200 mL of the mixture containing glutaric dialdehyde and paraformaldehyde for fixation.

两组大鼠给予质量浓度为10 g/L的乌拉坦1 g/kg腹腔内注射，麻醉后开胸，升主动脉插管，戊二醛与多聚甲醛混合固定液200 mL灌流固定，取嗅球，振荡切片，锇酸后固定，平板包埋，光镜下选取嗅球各层，制备超薄切片，透射电镜下对比观察。

The cannas natural antistaling agent is separated by column separation methods and recrystallization. Fraction Ⅱ-2 is analyzed by GC-MS. Three compounds which are n-Octadecane, n- Heptacosane and Decanoic acid heptyl ester were identified.A new way of litchi preservation is provided in this paper.

本论文还对此美人蕉天然保鲜剂进行了分离研究，先对其乙醇提取物进行柱层析粗分，然后对组分Ⅱ进一步细分，对其中的组分Ⅱ-2进行了GC-MS分析，鉴定出3个物质，它们分别是正十八烷(n-Octadecane)、正二十七烷(n-Heptacosane)和癸酸庚酯。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。