薄层

It,s allelchemicals were isolated through extraction, thin-layer chromatography, and column chromatograpathy. After the white clover was infused in ethanol and evaporation, the leavings was dissolved by water. The aqueous extract was extracted by petroleum,chloroform, ethyl acetate and n-Butanol successively, and the bioassay showed that the chloroform phase has obvious inhibitory effect, the inhibitory rate was 44.32%,88.08% on Abutilon theophrasti M., seedling length and root length, 82.08%,92.16% on Echinochloa crusgalli L., seedling length and root length, and the Amaranthus retroflexux L., germination rate is 0, the secondly was ethyl acetate phase.

运用萃取、薄层层析、柱层析等方法对白三叶草地上部分的化感物质进行初步分离，结果表明，白三叶草经乙醇浸提旋转蒸发后用蒸馏水溶解，依次用石油醚、氯仿、乙酸乙酯、正丁醇萃取，生物测定表明氯仿组分对杂草的抑制作用最强，对苘麻芽长和根长抑制率分别为44.32%、88.08%，对稗草芽长和根长的抑制率分别为82.08%、92.16%，反枝苋的发芽率为0；其次是乙酸乙酯相。

She also said that the aerosphere around the earth is like a very thin egg shell,which suggests that the aerosphere is getting very fragile.

她还说：地球表面的大气层看起来就像一层很薄的鸡蛋壳。

If you were to spray shellac, the layers will be very thin and would not amalgamate.

如果你要喷虫胶漆，每层都会非常薄而且不会很好融合。

If the gouge layer is thin, contact between asperities on the rock surfaces can occur

如果充填物层很薄，两个岩石表面上的凸起物就有可能互相接触。

The upside in the coping of reative cell and flank sets aspersion shower nozzle, time, aspersion of surface of grey grain of mensurable Xiang Shi, make the surface of limestone covers film of a thin water, when flue gas has spread every reative cell, the SO2 in flue gas and the limestone grain that covering water film undertake osculatory, in entering water film through diffusing, with limestone happening chemistry reacts, 80% above are the by-product that reaction produces gesso crystal.

反应室的顶部和侧面中上部设有洒水喷头，定时，定量向石灰颗粒表面洒水，使石灰石的表面覆盖一层薄水膜，当烟气流过每个反应室时，烟气中的SO2和覆盖着水膜的石灰石颗粒进行接触，通过扩散进入水膜中和石灰石发生化学反应，反应产生的副产物80%以上为石膏晶体。

Then we can pre-empt problems by building the mold with special inserts to rotate the flows into double-stacked hot-runner manifolds through sequenced valve gates into pressure-monitored cavities fabricatedfrom a myriad of steels coated with exotic super-hard, lubricious, rust-proof platings applied with little heat and thinner than air.

然后，我们捷足先登：用特殊的嵌件构建模具，使料流旋转进入双层结构的热流道，再通过顺序浇口的开启注入到压力监控的模腔，这些模腔是用涂覆着超硬的、润滑的、防锈的电镀层制造的，这些电镀层绝热效果好，比空气分子还薄。

It ensures good adhesive and throwing power, increases the de...

在满足相同的镀层性能指标的前提下，它可使镀层厚度减薄1/3～1/2，进而可节约原材料10～20％。

The results show that it can recognize reservoirs within 3 to 6 m, solve the difficult problem of the thin-bedded alternation sandbody identification and receive better exploration and development efficiency.

结果显示，反演可以识别3~6 m的储集层，解决了砂体薄互层识别难的问题，获得了比较好的勘探及开发效果。

The variety disease resistance was related to the structures of the plant leaves.The disease resistant varieties were with less stomatas and thicker wax layer.

品种的抗病性与其叶片的结构有关，气孔数目多且蜡质层薄的品种抗病性较差，气孔数目少且蜡质层厚的品种抗病性较强。

High wispy clouds are called cirrus (from the Latin word for curl of hair); sheet like clouds are called stratus; billowing, puffy clouds are called cumulus; and rain-producing clouds are called nimbus.

很高的很薄的云叫卷云（拉丁词cirrus，表示curl of hair卷的头发的意思；片状的云叫层云（拉丁词stratus，表示layer层的意思；翻滚的大片的云叫积云（拉丁词cumulus，表示heap堆的意思）；产生雨的云叫雨云（nimbus，表示rain雨的意思）。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷