查询词典 rotational level

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％。

Turbidity of outflow reached the lowest level when ration of PAM towards sludge and water together equaled 1∶1. According to the orthogonal experiments, the sequence for four main factors of this technology influencing turbidity could be expressed as: poly-ferric chloride dosage, rotational speed of mechanical blender, activated sludge dosage, and PAM dosage.

同时，采用正交实验考察了不同因素对高效絮凝沉淀工艺的处理效果的影响程度，分析得出影响试验出水浑浊度的显著性顺序依次为：聚合氯化铁投加量＞机械絮凝搅拌转速＞活性污泥投加量＞PAM投加量。

The measuring precision of the rotational tribometer is upgraded from the millimeter level to the micrometer level compared with the linearly reciprocating friction test rig, which gives a more profund understanding of friction characteristics and is necessary for developing high precision frition models.

在摩擦预滑动阶段，GBM模型用一系列含库仑摩擦的弹簧振子模拟预滑动阶段的摩擦特性；在宏观滑动阶段，则采用了改进的Bouc-Wen模型和含变摩擦系数的扩展Stribeck曲线。

Results:The rats occurred rotational behavior to ipsilateral side of intranigral FeCl3 injection; the DA level of FeCl3 and FeCl2 injection side reduced significantly (P＜0.01), the A, NA and 5-HT were uneffected.

结果： 注射FeCl3的大鼠出现向损毁同侧的旋转行为；注射FeCl3和FeCl2侧黑质内多巴胺水平显著降低，去甲肾上腺素、肾上腺素和5-羟色胺水平不受影响。

The agitation power consumptions in boiling systems decrease uniformly with the increase of agitation speed, whereas the relative power demand (RPD-the ratio of agitation power input of HEDT for gassed system to that for ungassed system and under the same agitation speed) can maintain at a high level for high gas loadings even when the impeller is operating with a high impeller tip speed. The gas hold-up in the boiling system is much lower than that in the cold gassed system, and the gas hold-up in boiling system increases at first and then decreases with the increase of the agitation power consumption per liquid mass P(subscript m. It implies that the boiling three-phase system has a maximum gas hold-up point. The changes of nucleation site of vapour bubble and the character of suspension of the solid particles with the rotational speed of the impeller are responsible for those behaviors mentioned.

在沸腾条件下，搅拌功率消耗随着搅拌转速的增加有所下降，但HEDT桨具有较高的载气能力，即使在高叶端线速度下，相对功率消耗仍能保持在较高的水平；沸腾体系的气含率随单位质量流体输入功率的增加表现出先增后减的规律，即存在气含率的极大值，蒸汽成核位置和固体颗粒悬浮特性随搅拌功率增加而改变是造成上述行为的主要原因；沸腾体系中的气含率远远低于常温通空气体系。

The rotational levels of the ground vibrational level may be depopulated by radiation.

基态振动能级的各转动能级的粒子数可能因幅射而减少。

This article elaborated a 12 level of rotational speed C6132 horizontal lathe headstock design process, the headstock uses to support the main axle and to cause it revolving.

本文阐述了一个12级转速的C6132卧式车床主轴箱的设计过程，主轴箱用以支撑主轴并使之旋转。

The application of the prior three-dimensional composite shock-proof bearing into the large span mesh roof structure has the following problems:(1) the level shock-proof bearing is series-connected with the vertical shock-proof device, the height of the bearing is large, so it is lack of stability ;(2) the horizontal displacement of the structure under earthquake is large,(3) it is lack of vertical pulling-proof ability, the bearing rotational capacity is insufficient.

现有的三维复合隔震支座要将其应用于大跨网格屋盖结构存在以下问题：(1)水平隔震支座与竖向隔震装置串连，支座的高度大，缺乏稳定性；(2)在地震作用下结构的水平位移较大；(3)缺乏竖向抗拔能力，支座转动能力不足。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。