无齿的

During experiment, LC50 of bleaching powder in 24, 48, 72, 96, 120, 144 and 168 hours were get; LC50 of trichloroisocyanuric acid powder in 24, 48, 72 and 96 hours were also get.

试验以洱海流域的背角无齿蚌为研究对象，确定常用鱼药：漂白粉、氯杀宁对湖泊大型底栖动物背角无齿蚌的毒性影响。

The safe concentration of Anodonta woodiana woodiana were: the available chlorine of bleaching powder of 95.25~108.86 mg/L, the available chlorine of trichloroisocyanuric acid powder of 3.32~3.55 mg/L.

试验得出漂白粉作用下，背角无齿蚌24h、48h、72h、96h、120h、144h、168h的半致死率；氯杀宁作用下，背角无齿蚌24h、48h、72h、96h的半致死率；漂白粉有效氯安全浓度95.25~108.86mg/L；氯杀宁有效氯安全浓度3.32~3.55mg/L。

Stamens 6, tetradynamous; filaments wingless or uni- or bilaterally winged, appendaged or not, toothed or toothless; anthers ovate or oblong, apiculate or not at apex.

雄蕊6，四强雄蕊；两侧具翅的花丝无翅或一或，附属物与否，无牙的齿或；花药卵形或长圆形，具细尖的或并非在先端。

In the paper,the transmission of designed roller oscillating tooth reduction gear adopts osci llating tooth gear drive without exception,one-stage reduction gear and two-stage reduction gear have joined through spline coupling band;The joining way of shock wave thellomble and oscillating tooth adopts the biserial bearing of without inner ring of needle bearing,and directly adopts bearing outer ring as shock wave thellomble;Center wheel of two-stage reduction gear and center wheel of two-stage reduction gear passes through taper thread,and center wheel is fixed;As soon as the flange of input end and center wheel of one-stage reduction gear,the flange of export end and center wheel of two-stage reduction gear makes monobloc structure.

本文预设的井下减速器的传动均采用活齿传动，一级减速器的输出轴和二级减速器的输入轴通过花键联轴套联接；激波环与活齿的毗连方式采用能蒙受较大载荷的无内圈双列滚针不锈钢管，且直接采用不锈钢管外圈作为激波环；一级减速器的中心轮和二级减速器的中心轮是通过锥螺纹毗连的，且中心轮固定；一级减速器的中心轮与输入端的法兰盘，二级减速器的中心轮与输出端的法兰盘均做成整体的结构。

In the paper,the transmission of designed roller oscillating tooth reduction gear adopts oscillating tooth gear drive without exception,one-stage reduction gear and two-stage reduction gear have joined through spline coupling band;The joining way of shock wave thimble and oscillating tooth adopts the biserial bearing of without inner ring of needle bearing,and directly adopts bearing outer ring as shock wave thimble;Center wheel of two-stage reduction gear and center wheel of two-stage reduction gear passes through taper thread,and center wheel is fixed;As soon as the flange of input end and center wheel of one-stage reduction gear,the flange of export end and center wheel of two-stage reduction gear makes monobloc structure.

本文设计的井下减速器的传动均采用活齿传动，一级减速器的输出轴和二级减速器的输入轴通过花键联轴套联接；激波环与活齿的连接方式采用能承受较大载荷的无内圈双列滚针中国财经圈，中国财经圈，且直接采用进口中国财经圈外圈作为激波环；一级减速器的中心轮和二级减速器的中心轮是通过锥螺纹连接的，且中心轮固定；一级减速器的中心轮与输入端的法兰盘，二级减速器的中心轮与输出端的法兰盘均做成整体的结构。

Mm, margin remotely crenulate, apex obtuse; calyx 3-3.5 mm; corolla glabrous outside, abaxial lip ca.

苞片约5毫米，边缘稀疏具细圆齿，先端钝；花萼3-3.5毫米；无毛的花冠在外面，背面的唇约5毫米；花药无毛；退化雄蕊2 14 Chirita orthandra 直蕊唇柱苣苔

In China, Pimpinella can be divided into two groups: those species with hairy, puberulent, or distinctly roughened fruits and obsolete calyx teeth; and those with smooth, glabrous fruits and obsolete or conspicuous calyx teeth.

在中国，Pimpinella 可以被分成两组：有毛，被微柔毛的，或果明显粗糙和萼齿废退的；以及那些具平滑，无毛果和废退的或明显的萼齿的。

The kitten should be prepared for some appliances, bath, the appliance should be prepared: bathtub, bath towel, bath, comb (metal, wood or plastic of all, the best preparation of teeth, the teeth of a Lean), brushes, absorbent cotton rods, small tweezers, eye ointment, hair dryer and so on.

给小猫洗澡要准备一些用具，应准备的用具有：洗澡盆、浴巾、浴液（要用对猫的皮肤无刺激性的）、梳子（金属、木质或塑料的都可以，最好准备密齿、稀齿的各一把），刷子、脱脂棉棒、小镊子、眼药膏、吹风机等。

The slewing bearing can be divided into four-point conatct ball slewing ring, double-row angular thrust ball slewing bearing, crossed cylindrical roller slewing bearing, crossed tapered roller slewing bearing and three-row cylindrical combined roller slewing bearing according to their different structural styles.

转盘轴承根据不同的结构型式可以分为四点接触球转盘轴承、双排角接触推力球转盘轴承、交叉圆柱滚子轴承、交叉圆锥滚子轴承和三排圆柱滚子组合转盘轴承等不同的结构型式；上述各类轴承按其是否带齿及齿轮的分布部位又分为无齿式、外齿式或内齿式等不同结构。

The slewing bearing can be divided into four-point conatct ball slewing ring, double-row angular thrust ball slewing bearing, crossed cylindrical roller slewing bearing, crossed tapered roller slewing bearing and three-row cylindrical combined roller slewing bearing according to their different structural

转盘轴承根据不同的结构型式可以分为四点接触球转盘轴承、双排角接触推力球转盘轴承、交叉圆柱滚子轴承、交叉圆锥滚子轴承和三排圆柱滚子组合转盘轴承等不同的结构型式；上述各类轴承按其是否带齿及齿轮的分布部位又分为无齿式、外齿式或内齿式等不同结构。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐