四对的

Fourthly, this paper standardizes the linear of the inductance sensor and analyzes its error. Then we discuss the angle error of the laser sensor and the datum plane error of the mechanism.

第四， 此外，本文还对电感传感器进行了线性校正及误差分析，讨论了激光传感器倾角误差，并对机械设计中的定位结构进行了误差分析，提出了改进的措施。

Through calculating marginal effect coefficient to the relative transaction cost of the economic development level and system transition process , we can decompound the regional difference on this two factors, and divide four kinds of forming mechanism of regional disparity of transaction cost.

通过测算经济发展水平和体制转型进程对相对交易费用的边际效应系数，可以对各地区交易费用离差进行因素分解，从而划分交易费用地区差异形成机制的四种类型。

The requirement for teachers qualification in traditional primary schools and the social appraisement to teachers both concentrate on the teachers morality,acquirement,devotedness and the level of teaching.

传统学塾对塾师任职资格的要求，社会舆论对塾师的评价，集中在品行、学识、尽心和善教四个方面。

The influences of the amount of triethylenetetramine, temperature, molar ratio of epichlorohydrin and dimethylamine, and reaction time on the viscosity and cationic degree of the polyamine flocculants were investigated. Then the influence of pH value, flo-cculant dosage and temperature on flocculation effect were studied.

研究了三乙烯四胺添加量、反应温度、n∶n、聚合时间等因素对聚合物黏度和阳离子度的影响，并考察了该聚合物用于造纸废水处理时，体系pH值、絮凝剂用量对絮凝效果的影响。

People in their 30s and 40s are disenchanted with the world,but remain aware,said Mr.Kohut.

科胡特先生说三四十岁的人虽然对世界不抱幻想，但仍然保持对世界的关注。

Chapter 4 partitions the target market of DZ technology and analyses and forecasts its scale, characteristic, situation of competition.

第四章对DZ科技的目标市场进行了细分，并对目标市场的规模、特点、竞争格局等进行了分析及预测。

The need for rescue antiemetics and interferenceof emetic symptoms with normal activities was greater in thefour risk factor group compared with the two and three riskfactor groups.

四个危险因素组对补救止吐药的需要和呕吐症状对正常活动的干扰与两个和三个危险因素组相比明显提高。

Methods:(1) Fura-2 based calcium imaging technique was used to examinate the effects of leptin on the basal [Ca2+]i, and the modulation effects of leptin on KCl-evoked [Ca2+]i increase in long-term cultured hypothalamic neurons.

对四个培养时间段的下丘脑神经元分别进行以下实验：(1)采用荧光钙离子成像技术，研究瘦素对细胞内静息钙离子浓度的影响，及其对25 mM KCl引起的细胞内钙升高的调节作用。

Eunhyuk: Many people are worried, but to us, this comeback is a huge decision, and though one may feel dissatisfied with only 10 members on stage, and this 4th album only includes 10 members.

赫： 很多人都很担心，但对我们来说，今次的CB是重大决定，尽管有人对於十人的四辑和舞台感到不满。

But after World War II it would have been hard to read, in America or abroad, a single criticism of JDR, nor of Junior, who had followed in his father's footsteps, nor of Junior's four sons who all endevoured to emulate their illustrious forbears.

但是第二次世界大战以后，无论是在美国国内还是国外，很难再看到不管是对老洛克菲勒，还是对小洛克菲勒的哪怕是一句批评，而小洛克菲勒已经步了老洛克菲勒的后尘；也看不到对小洛克菲勒四个儿子的批评，他们都在竭力效仿他们杰出的前辈。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。