保持

In addition, to keep the ambient temperature in the 19th ~ 23 ° c and relative humidity below 50%.

此外，要注意保持环境温度在19～23℃，相对湿度在50%。

He keeps to himself, his feelings still ambivalent.

他保持他自己，仍然矛盾的他感觉。

If I hold it for a day, you will have to call an ambulance.

如果有一天的时间我保持它，你不得不将叫一辆救护车。

How time flies that there are only several years for you to could be lovely and amazing. You deserve to be taking good care. Try your best, but not too expensive, to dress up as an angel; Keeping a gentle state of mind to add your amiability.

美丽动人的时光只有那么几年，真该好好珍惜，要在可以承受的范围内，尽量把自己打扮得像天使；保持中庸的心境，让自己更加可爱一些。

Ensure that you keep your mouth, nose and face covered when you are amidst the infected people.

确保您保持口腔，鼻腔和覆盖面时，正处于受感染的人。

When they are silent, however, we have reason to believe that something is amiss.

但当他们保持沉默时，我们有理由相信出了什么错。

Such as the products of ammine fiber flux SASincreased ten times in recent four and five years.

在保持原有产品的基础上，着重开发氨纶助剂。

In order to figure out the use of compression in the wood preservation aspect, the authors compared the compressed wood samples pretreated with hot water bath or water spraying and compressed preservative-treated wood, which was treated with ammine copper quat-type D preservative solution. The liquid absorption and recovery rate of compression deformation of the compressed wood were determined, as well as the surface hardness, distribution of density and CuO retention in the thickness direction of CPW.

摘要为研究压缩处理在木材防腐方面的应用，该研究测定了经过不同水浴和喷水预处理后的径向压缩木材在胺溶铜季铵盐--D型防腐剂中浸泡后的吸液量和变形回复率，并测定了由此制备得到的压缩防腐木的表面硬度、厚度方向上的密度分布和CuO保持量分布情况。

In concentrated solution of cobalt salt precipitation system, the effects of reagents of ammonia carbonate and ammonium oxalate was studied respectively.

溶液中NH4+的加入，在高 pH值条件下，存在钻氨的络合反应和钻的沉淀反应，草酸钻仍保持针状形貌：在低pH值条件下，随着NH4十加入量的增多，草酸钻形貌变得粗短，长径比、粒度减小；最后呈方形，松装比重增加。

Please choose your close friends carefully. because of they will bring some effect for your amour-propre and future road to you.

小心选择与你保持紧密关系的朋友，因为他们会对你的自尊心与生活道路产生种道德影响。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。