筛分析

Eliminating cottonseed linter and shell from cottonseed meal by a cone screen is a simple way of increasing cottonseed meal value.

用圆锥筛清选棉粕，除去棉粕中的棉壳与棉绒是提高棉粕价值和利用率的简易而有效的方法，文中就圆锥筛的清选机构及其工作原理进行了分析和探讨，并给出了试验结果及相应的分

The first part discusses about the effects of the five factors:temperature,relative air moisture,rate of frass sifting,density of larvae,fodder water percentage to growth speed and survival rate of older mealworm (Tenebrio molitor L.) larvae through rotational composite design of quadratic regression. Two models were established to describe the effects of the five factors. The models showed that percentage of fodder water is the major factor that has effect on the growing speed of T. molitor larvae,and fodder water is the major factor on death rate. The models also show that temperature on growth speed,temperature and fodder have important effects on death rate,and the significant test showed they have significant difference on 1% or 5% level. From the two models,by frequency analysis,we can get the optimizing rearing condition,in which the mealworm larvae overweight 10% per day,temperature is 25-26 ,frass sifting rate is once 2-4 days,density of larvae is 0.61-0.79 g/cm2,fodder water is 33.27%-39.71%. And the rearing condition,in which total death rate of T.

第一部分：采用五因素二次正交旋转组合设计，以黄粉虫幼虫饲养过程中饲养温度(X_1)相对湿度(X_2)、虫粪筛除频率(X_3)、饲养密度(X_4)以及饲料含水量(X_5)五因素为参试因素，考查它们对黄粉虫高龄幼虫的生长及存活的影响，建立了以黄粉虫幼虫增重率及死亡率为目标函数的回归模型，并进行了简化： Y_增=127.5079+18.6559x_5+2.7894x_3x_4-2.3854x_3x_5-3.0594x_1~2+1.8241x_3~2-3.8559x_5~2 Y_死=1.7459+0.4108x_1+0.0975x_2+0.9025x_4+0.3442x_5+0.0834x_1~2+0.3060x_4~2-0.2623x_5~2 分析结果表明：影响黄粉虫幼虫生长后期增重及死亡的主要因素分别为饲料含水量和饲养密度；饲料含水量和温度对黄粉虫增重有着重要的影响，饲养密度、温度、饲料含水量对黄粉虫的死亡有着重要的影响，其影响均达1％或5％显著水平；黄粉虫幼虫后期日增重率大于10％的饲养条件为：温度26～27℃、筛粪频率2～4天／次、饲养密度0.61～0.79g／cm~2、饲料含水量33.27～39.71％。

The present production condition in Yuquanling concentrator was analyzed, the necessity and feasibility of technical reconstruction were pointed out, and such technical measures as using autogenous grinding self return screen and small magnetic pulley and increasing fine screen and their effects were described.

对玉泉岭选矿厂的生产现状进行了分析，并指出了技术改造的必要性和可行性，对自磨自返筛、小磁滑轮、加大细筛等技术措施及其效果进行了论述。

Screening results showed that mydriasis direct ophthalmoscope check was more effective and more practicable when stage Ⅲ DR was taken as critical value in screening.

筛查效果分析显示以Ⅲ期DR作筛查的临界值时，散瞳直接眼底镜检查有较高有效性和实用性。

To detect the mutation of PINK1 gene in Chinese patients with early onset Parkinsonism by using DHPLC.

应用DHPLC技术对100例EOP患者进行PINK1基因突变筛查，对DHPLC筛查发现异常的PCR扩增片段进行DNA直接测序和分析。

It is shown that, its structure design is reasonable. Under the design working conditions, the maximum principal stress of the sideboard is 13.8 MPa,and its dynamic strength is satisfied.

分析表明，该振动筛的结构设计合理，且在设计工况下，筛箱侧板的最大主应力为13.8 MPa，其动强度满足要求。

The complex movement regularity of particle group is analysed by using no-linear mathematical tools and the recurrence formula of movement is obtained in intensifying screen.

应用非线性数学工具对物料在强化筛中的复杂运动规律性进行了分析，推导出颗粒在强化筛中运动的递推公式。

We made a comparison of using laser method and comprehensive method(pipette analysis-sieve analysis)to do grain size analysis for 65 sediment samples from the South Yellow Sea area.The analysis result from the laser method is very close to that from the sieve method.

本文主要通过实验研究，对南黄海沉积物用激光粒度分析仪和沉降法、筛析法取得的测试结果作对比研究，探讨激光粒度分析结果在该海域应用的可靠性。1粒度分析方法的基本原理1.1综合法通常联合使用筛析法和沉析法叫综合法。

And the country among major cities has sales outlets, the main products include all types of standard screen, coal Sieve, sieve coking and analysis equipment, laboratory equipment, building materials, road equipment and accessories.

浙江省上虞市水仙仪器有限公司是一家专业从事机械科研试验仪器生产的企业，下设兰州水仙仪器有限公司，并在全国各大中城市设有销售网点，主要产品有各类标准筛、煤样筛、焦化筛和分析仪器、化验设备、建材、公路仪器及配件。

Introduce the work principle and structure of the new piano wire screen ,and then take the GXS1630 piano wire screen as the example,make an analysis of some main parameters,and moreover,give specific solution and computational formulas.

介绍新型琴弦筛的工作原理及结构特点，以新型GXS1630琴弦筛为例，对其主要参数选择与计算进行了详细分析，并给出了具体的解决方法和计算用公式，为琴弦筛的进一步设计和改进提供了参考。

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