查询词典 etching silk

Objective To evaluate the most effective method of fluoride application to prevent decalcification of enamel before,during and after etching in orthodontic treatment.

目的探讨氟化物在正畸治疗中预防牙釉质脱矿的最佳使用方法。方法制备正畸拔除的前磨牙96颗，随机分成4组，分别为对照组及酸蚀前、中、后用氟组，粘结托槽后，将每个样本分别放入装有2ml酸性人工唾液的试管。

After UV irradiation and the decomposition of diazium group, the linage of the films will be converted from ionic bond to covalent bond, result in the films could resist the etching of polar solvents and strong electrolyte.

利用传统的三电极光电转换装置，以0.5M KCl溶液为支持电解质，测试了含聚苯胺衍生物超薄膜的光电转换性能，并考察了影响光电流产生的影响因素。

Experimental results demonstrate that the pretreatment on the cleaved edge affects the overgrowth and that selective etching is better than natural oxidation for site-controlled growth of quantum wires.High temperature degasification will induce pits on GaAs spacers,indicating that Ga atoms can easily escape from (110) cleaved edges.

实验结果显示超晶格解理面的预处理方法对二次外延有重大影响，其中择优腐蚀比自然氧化更有利于量子线的定位生长，过高温度的脱氧除气会导致解理面的GaAs部分出现坑状结构，表明（110）面上的Ga原子容易脱附。

Aim. This study examined the effect of etching time on the microtensile bond strength to AI-affected primary dentine.

目的：测量不同酸蚀时间下， AI 的乳牙牙本质的微拉伸粘结强度的变化。

Methods Two hundred and thirty-six cases (n 354) of caries were randomly divided into three groups: group A was performed with routine filling , group B was performed with combination of Gluma desensitizer with routine filling and group C was treated with combination of acid etching agent, Gluma desensitizer and routine filling.

将236例354颗深龋患牙随机分为3组，A组采用常规充填，B组用Gluma脱敏剂＋常规充填、C组用酸蚀处理剂＋Gluma脱敏剂＋常规充填。

Pretreatment of acid etching agent plus Gluma desensitizer for desensitization of cavity is better measure for prevention of dental hypersensitiveness after deep caries filling.

用酸蚀处理剂＋Gluma脱敏剂预先对窝洞进行脱敏是预防深龋充填后牙本质过敏症的较好方法。

It can be seen from the evaluation result that the high and low diffluence measures of phosphorus-containing wastewater concentration implemented in the process and the improvement of air knife material and airflow mode at the etching machine can be controlled effectively and reduce the amounts of phosphorus-containing wastewater.

从制程端实施含磷废水浓度高、低分流处理措施及进行蚀刻机台风刀材质与流动模式改善，均能有效控制并降低含磷废水排放量。2。

Objective:To explore the application of freeze-etching electrom microscopy in the study of Duchenne muscular dystrophy.

目的：探讨电镜冷冻蚀刻技术在Duchenne型肌营养不良症研究中的应用。

Etching vertical and smooth grating facet is the basic of the fabrication of EDG.

制作垂直、光滑的光栅槽面是制作EDG的关键。

Original image on the image by ultraviolet irradiation in corrosion-resistant membrane (on the printing plate cylinder electrodeposit to the membrane corrosion) or carbon paper, the membrane to the drum, in lukewarm water, carried out by chemical etching with ferric chloride, resulting in the depth of the screen.

原版上的图像经紫外线照射成像于耐蚀膜（对印版滚筒镀层进行腐蚀所用的膜）或碳素纸上，再将此膜包裹于滚筒上，在温水中显影，通过氯化铁进行化学腐蚀，形成深浅不一的网孔。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。