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The nucleation and growth of thermodynamically unstable calcium oxalate trihydrate crystals were faster than those of thermodynamically stable calcium oxalate monohydrate crystals when the crystallization was in higher concentrations of calcium and oxalate (in the form of potassium oxalate). however, only com crystals formed when the concentrations of calcium and oxalate declined to 0.60 mmol/l.

结果 ca2+和c2o42-浓度较高时,热力学不稳定的三水草酸钙晶体成核及生长的速度比一水草酸钙晶体快,而随着ca2+和c2o42-浓度的降低,com晶体的成核和生长占优势,当浓度降低到0.6 mmol/l时,只出现com这一种晶型。

In the first cultivation stage,as relatively high concentration of phosphorus,phosphorus from water column was removed to a certain extent by periphyton.The end of the incubation,as low concentration of phosphorus periphyton releases phosphorus to water column instead of removal phosphorus from water,this may closely relate to the alkaline phosphatase secreted by periphyton in water body.

从培养过程中水体磷的浓度变化来说,培养初期,水体中磷的浓度比较高,附着生物对其有一定的去除作用;培养后期,水柱中磷的浓度比较低,附着生物不但不去除水中的磷,而且还向水柱中释放磷,这可能与附着生物向水体分泌碱性磷酸酶密切相关。

In skin exposure experiment, we found urinary chromium concentrations in post-exposure overtly higher than that in pre-exposure when Wistar rats were exposed to chromium VI and chromium III at 100 mg/L simultaneously.

而在浓度100 mg/L的皮肤暴露途径下亦发现,同时暴露到Cr+Cr时,尿中的总铬平均浓度明显的高於未进行实验前的尿中总铬浓度,故可推知共同暴露到Cr+Cr时,可能较个别暴露易於经由皮肤吸收而进入到体内。

The results indicated that the accumulation of Mn in the cell wall (accumulation rate as high as 36.34%) and the vacuole of the leaves (accumulation rate as high as 65.64%) might be one of the mechanisms of tolerance and hyperaccumulation of Polygonum hydropiper to Mn. Most Mn in leaves were the speciation of H2O-solubility organic salts or manganese oxalates. The content of chlorophyll a did not change under different Mn concentration treatments except that its content decreased remarkably when Mn concentration was 8000μmol/L in solutions. The membranes were not banned by Mn when its concentration was less than 5000μmol/L in solutions; Under different Mn concentrations of Mn, the content of their soluble proteins of leaves had changed at some stage. The activity of SOD and POD were gradually improved with the increasing of Mn concentration, which could eliminate activated oxygen free radical, This might be the other physiological mechanism of tolerance and hyperaccumulation of Polygonum hydropiper responding to Mn.

结果表明:锰在水蓼叶片非活性代谢部分的积累是其解毒耐锰的主要机制之一;水蓼叶片中的锰大部分以水溶性有机盐或草酸锰的形态存在;在锰浓度处理为8000μmol/L时,叶绿素a含量显著降低,而在其它处理条件下,叶绿素a无明显变化;在锰处理≤5000μmol/L时水蓼叶片的细胞膜还没有受到明显伤害;水蓼叶片的可溶性蛋白含量随锰处理浓度不同而变化,说明植物在代谢和结构上发生了调整;随锰处理浓度的增加,水蓼叶片SOD和POD活性提高,保护酶活性的提高又可清除活性氧自由基,这是水蓼耐高锰和累积锰的一种生理响应机制。

These two elements precipitate into otoliths crystal lattice or interstitial to substitute for calcium (Ca2+) in vaterite or aragonite. The precipitation of otoliths is controlled not only by biological regulatory, but also influenced by environmental factors, such as: element concentration, salinity, temperature of ambient water, food intake, etc.

耳石结晶沉淀的整个过程不仅受生物的调控作用,而且还受到外界环境,如水体元素浓度、盐度、温度等因素的影响,因此耳石中某种元素的浓度与其在水体中的浓度之比与鱼类所生存的环境之间具有一定的响应关系。

The result showed that LPS inhibited the proliferation of pulp cells when its concentration was 100μg /ml; it could induce the apotosis of the cell when in 250μg /ml and it could lead the pulp cell to die when in 450 μg/ml.

g/ml浓度的LPS可抑制细胞生长,使细胞体积缩小;200μg/ml浓度的LPS可使个别细胞收缩变圆,发生类似凋亡样改变;而400μg/ml浓度的LPS可使细胞肿大、破碎发生坏死样改变。

The results show that shade of cocoon and reeling silk are all even and bright. Color depth in the cocoon is directly proportional to the concentration of additional pigment. With respect to cocoon color, no difference occurs to the male or female when fed with the same concentrated pigment. Within the range of certain concentrations, the red pigment has little effect on the quality of cocoon and cocoon filament. The red pigment has a fast bond with protein. Color of sericin, fibroin, pupa, moth and egg shell are all red.

结果表明:所营蚕茧及所缫蚕丝色泽均匀、鲜艳;蚕茧的色彩深度与添加的色素浓度呈正比;添食同种浓度的色素所得的蚕茧色彩在雌雄之间无差异;经调查,在一定的浓度范围内红色色素对茧丝质无影响;红色色素与蛋白结合牢固,无论丝胶、丝素还是蛹体、蛾体或卵壳均呈红色。

When copper concentration was 3.2x10~(-5) mol.L~(-1) or aluminium concentration was 7.41 x10~(-6) mol.L~(-1), two pieces of wing petal of Harmony Violet turn back into tube-shape.

而在铝处理中,随铝浓度的增大,紫花品种的花色先变浅、出现白色亮斑后又逐渐加深,当铝浓度为7.41×10~(-6)mol·L~(-1)时,花朵翼瓣向花瓣下表面卷曲成筒状,而且筒状程度随铝浓度加大而增大。

Furthermore, the structures of DNA molecules varying with concentration of new modification agent were studied, and it was found that when the new modification agent concentration was 1:1000, DNA molecules were successfully fixed and extended on the modified mica surface and well-distinguished DNA strands were imaged by AFM.

并进一步观察了不同DAPS浓度下DNA分子的吸附行为,发现当DAPS/甲醇体积比浓度为1:100时,DNA分子呈现出大而复杂的形态,发生了分子内和分子间的碱基相互配对;当体积比浓度为1:3000时,即没有分子内和分子间的碱基相互配对,也

Cotton cloth is generally scoured with a delute solution of sodium hydroxide(1 to 3 percent, based on the weight of the cloth).

棉织物一般在浓度较低的氢氧化纳溶液中煮练(浓度为1%~3%,浓度的大小取决于织物的重量)。

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I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。