按磨

The experiment makes clear, should wear mine size - 0.074 mm is occupied 95%, ore pulp chroma is 30%, ph value is 7, catch receive a dose (huang yao of fourth ammonium black medicine and butyl presses 1 ∶ 1 make up), activator , dispersive agent 6 slant phosphori

实验表明，当磨矿粒度-0.074 mm占95%、矿浆浓度为30%、ph值为7.0、捕收剂(丁铵黑药和丁基黄药按1∶1配制)、活化剂、分散剂的用量分别为240 g/t、800 g/t、800 g/t时，粗选铜的回收率为64.65%，粗精矿铜的品位达到4.54%。

METHODS 104 cases of primary motar teethes were selected and randomly divided into the upper jaw and lower jaw groups according to their position. Using the 2% glutaraldehyde pulpotomy, the curative effects of three and six months after operation were comparatively analyzed with following up the patients.

选用104例乳磨牙牙髓炎，按牙齿分布分成上颌组与下颌组，采用2%戊二醛活髓切断术的治疗方法，追踪分析两组患儿在三个月与六个月的疗效并进行对比。

The radiological features of COP were classified into four types according to pulmonary consolidation, ground grass opacity, nodule, and liner or reticular lesion. The distribution of lesions were classified according to the single or double lung fields, upper or lower lung field, or the surrounding bronchovascular bundle or subpleural area, The radiological types and distributions of the lesions were analyzed.

将COP的CT表现分为实变、磨玻璃样变、肺结节、线样或网格样改变等4型；病变的分布按单肺或双肺，上肺或下肺，胸膜下或沿支气管束走行等分类，对病变的类型及分布特点进行分析。

The weight percentage for the components of the hyaline coating is as follows: SiO2 45 to 54 percent, B2O3 15 to 20 percent, one or more of Na2O, K2O and Li2O, 10 to 24 percent, one or more of TiO2, ZrO2 and ZnO, 6 to 18 percent , and the rest is one or more of CaO, MgO and CeO2. Firstly, the glass powder is mixed with the mill additions to be pulped and then plated on the surface of titanium or the titanium alloy. After being dried, the surface of titanium or the titanium alloy is directly used for a thermal hydrogen treatment or smelted at a temperature of 900 to 1, 000 DEG C for 15 to 30 minutes and then a hyaline coating with a thickness of 20 to 70 micrometers is formed on the surface of titanium or the titanium alloy; secondly, titanium or the titanium alloy plated with the coating is conducted a thermal hydrogen treatment. After the treatment technique is finished, the coating flakes off automatically in the process of cooling; and finally, a surface treatment is supplemented to meet the requirement of the workpiece surface.

该玻璃质涂层成分按重量百分比：45-54SiO2，15-20B2O3，10-24Na2O、K2O、Li2O中的一种或多种，6-18TiO2、ZrO2、ZnO中的一种或多种，余量CaO、MgO、CeO2一种或多种，将玻璃粉与磨加物混合制浆并涂覆在钛或钛合金表面，干燥后直接用于热氢处理，或在900-1000℃下熔烧15-30min，在钛或钛合金表面制得20-70微米玻璃质涂层，随后将制有该涂层的钛或钛合金置于氢气气氛下进行热氢处理，处理工艺结束后，涂层在冷却过程中自剥落，最后辅以表面处理即可满足工件表面要求。

The spindle selects enclosed rolling bearing for supporting; vertical and horizontal drag board are adopted with enclosed rolling rod drive; body guide ways are casted with abrasion-resistance iron quenched with super frequency and milled precisely, and all these contribute to a long-term processing precision and a long lifespan; 5.5KW motor serves as the main motor contribute to a stronger turning capacity and larger rotary speed range; Workpiece clamping is are adopted withed with spring collet, it can also be equipped with hydraulic chuck, four-spindle oil cylinder, pneumatic, hydraulic tail stock.

CK6232数控车床是一款高刚性封密数控车床，特别适宜粗精加工，整机造型稳重大方，全封闭护罩防护，主轴采用精密刚性轴承支撑，纵横向拖板采用精密滚珠丝杆传动，床身导轨采用耐磨铸铁铸造，经超音频淬火及精密磨削，能长期稳定的保证加工精度和使用寿命；主电机选用5.5KW 的电机，使主轴有更强的切削能力和转速范围；工件装夹方式选用弹簧夹头，也可按用户要求配置手动卡盘、液压卡盘，气压、液压尾座。

Methods: 168 primary molars were collected and randomly divided into two groups. ART manual tools was used in the experimental group and burs was used in the control group.

收集临床初诊乳磨牙龋病例168例，按随机化原则分成两组，分别用牙钻和ART手用器械备洞充填治疗并对其疗效进行对比分析。

Bauxite based mullite was prepared with grade Ⅱ broken bauxite (3 mm) and broken coal gangue(3 mm) as starting material according to formula w(Al2O3)=68%~72% in bauxite based mullite grogs.

以Ⅱ等高铝矾土碎矿(≤3 mm)和煤矸石碎矿(≤3 mm)为原料，按照矾土基莫来石熟料w(Al2O3)=68%~72%的要求，将它们按一定比例混合配制成混合料，接着将混合料湿磨至0.044 mm以均化化学成分，经湿法挤泥成型、烘干后分别在1 550℃、1 600℃和1 700℃煅烧6 h，冷却后测定其显气孔率和体积密度以确定烧结温度。

My company is in accordance with GB8649 standard production of hot-rolled steel ball milling enterprises.

我公司是按GB8649标准生产热轧球磨钢球的企业。

In this paper,The effection of hybrid fibers including steel fiber,Dura fiber and Dolanit fiber as two elements or three elements on the mechanical properties and impermeability of high-performance cementitious matrix with the composite of high percentage pulverised steel slag and expansive agent are investigated systematically.

研究了钢纤维、Dura纤维和Dolanit纤维按二元或三元混杂对大掺量磨细钢渣与膨胀剂复合的高性能水泥基复合材料的力学性能和抗渗性能的影响，从不同尺度与不同性质的纤维在相应结构层次上的叠加效应角度来阐述水泥基复合材料的防渗抗裂机理。

In control group, we use the traditional RME method of utilizing bands on bilateral premolars and molars.

对照组在犬的尖牙和第一磨牙上制作个别带环，按传统方法进行螺旋扩弓器的快速扩弓。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。