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The Chondrite normalized REE pattern shows typical enrichment of LREE, with ∑REE peaking up to 318 mg kg^(-1) in central layer of the profile. Both Ce and Eu have a similar trend of variation in the profile, i.e. positive anomaly-negative anomaly-positive anomaly from bottom to top. The highest ∑REE value occurs where negative Ce and Eu anomaly and relatively higher Fe(superscript 2+)/Fe(superscript 3+) values also occur.

剖面稀土元素分布型式为轻稀土富集型，∑REE在风化壳中部达到最高值318 mg kg^(-1)，剖面上Ce和Eu均呈正异常－负异常－正异常变化趋势，∑REE最高值出现在Ce和Eu负异常和Fe(上标 2+/Fe(上标 3+)较高层位，∑REE与Fe2O3显著正相关。

Chorea is the jerky, involuntary movement that occurs in people with this disease.

舞蹈症是发生在患有这种疾病的人身上的不自主的抽动症状。

Dementia also occurs in Huntington chorea, paresis, and some types of encephalitis.

痴呆也常发生在患有亨丁顿氏舞蹈病、麻痹性痴呆和几种类型的脑炎病患身上。

Chromosome condensation is a significant process of cell multiplication and occurs as a prelude to sister chromatid segregation that initiates at the onset of anaphase.

在细胞增殖过程中，染色质集缩是细胞分裂得以正常进行的重要条件，也是后期姊妹染色单体分离的序曲。

Check the chromogen / substrate solution, the simplest test method is to mark a drop of antibody enzyme substrate added to the preparation of a good solution, if desired substrate color change occurs, you can rule out the substrate factors.

检查色原/底物溶液，最简单的检测方法是将一滴标记有酶的抗体加入到制备好的底物溶液中，如果底物发生预期的颜色变化，则可排除底物的因素。

Prominence usually occurs in the chromosphere, such as solar surface "earrings."

日珥通常发生在色球层的，像太阳面的"耳环"。

If the infection occurs during the natal age, many many immunotolerances can lead to the chronicity.

如果感染发生在婴儿期，大量的免疫耐受会导致肝病慢性化。

One of the earliest accounts of King Arthur occurs in a 12th-century chronicle of the kings of Britain.

一份最早的亚瑟国王的帐目重现在一本12世纪的不列颠国王的编年史里。

"It is the most abundant metallic element in Earth's crust, chiefly in bauxite, feldspars, mica s, clay minerals, and laterite. It also occurs in gemstones, such as topaz, garnet, and chrysoberyl; emery, corundum, ruby, and sapphire are crystalline aluminum oxide."

为地壳中丰度最高的金属元素，多存在于铝土矿、长石、云母、黏土等矿物和砖红壤中，也存在于宝石之内，如黄宝石、红宝石及金绿宝石；而刚玉金刚砂、深红宝石及蓝宝石则为晶透的氧化铝。

"It is the most abundant metallic element in Earth's crust, chiefly in bauxite, feldspars, micas, clay minerals, and laterite. It also occurs in gemstones, such as topaz, garnet, and chrysoberyl; emery, corundum, ruby, and sapphire are crystalline aluminum oxide ."

为地壳中丰度最高的金属元素，多存在于铝土矿、长石、云母、黏土等矿物和砖红壤中，也存在于宝石之内，如黄宝石、红宝石及金绿宝石；而刚玉金刚砂、深红宝石及蓝宝石则为晶透的氧化铝。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。