Four police officers in the city the killing of George Floyd last week.

It was sometimes called 'Boolean Algebra' after George Boole, who had formalised what he optimistically called 'the laws of thought' in 1854.

1854年，乔治·布尔将他所说的思考规则形式化，从那以后，这些运算有时也被称为布尔代数。

Application of A New-type Controller in the Distribution Unit of MPS System

一种新型逻辑控制器在MPS系统供料单元中的应用

The controlling system in the distribution unit of MPS system based on microcontroller

基于单片机的MPS系统的供料单元控制系统设计

In a typical configuration, one power distribution unit ( PDU) supplies power to the top half of the blade chassis while another PDU provides power to the bottom half of the chassis.

在典型的配置中，一个电源分布单元（PDU）为刀片服务器机架的上半部分供电，另一个PDU为机架的下半部分供电。

Basic principle of reliability evaluation of Binomial distribution unit is offered for correctly using in engineering.

为正确使用二项分布单元的可靠性评定方法提供了基础。

The man in the middle prospective bridegroom and businessman Freddie Bourne, 29, from Putney was trying hard not to inflame the situation.

受夹板气的是29岁的准新郎费雷迪伯恩，他是一名帕特尼的商人，他一直尽力不激化矛盾。

Speaking outside her home in Putney, west London, she said: The whole thing has opened a can of worms that really should not have been opened.

在她位于西伦敦普特尼的家门口，戈弗雷说道：现在整件事都一团糟，其实本不该如此。

So every Saturday and Sunday I walked to their house in Putney, and spent the afternoons there.

所以，每到星期六和星期天，我就徒步走到普特纳她们的家，把下午的时间花在那儿。

By 1845, with Westminster too crowded, the race moved up river to Putney.

到1845年，西敏斯特也人满为患，比赛又转至泰晤士河上游普特尼（Putney）。

Only when we were driving away from Putney together, did I wake from the dream.

一直到我们驾车离开普特纳，我才从梦中醒来。

Putney Student Travel: Cultural Exploration, Australia, New Zealand, and Fiji.

普特尼学生旅游：文化探索，澳大利亚，新西兰，斐济。

By 1845, with the small town becoming too crowded, the boat race had moved six miles up to the village – Putney.

到1845年时,由于小镇变得过于拥挤,划船比赛上移到了6英里外的普特尼村。

Traditional dilution and discharge are that can cause heavy environmental pollution, and because agricultural waste water contain a large amount of nutriment, which can utilize two times and reduce the input-output ratio of agricultural production, reduce the production cost.

传统的稀释排放会造成很大的环境污染，并且由于农业废水中含有大量的营养物质，完全可以二次利用，减少农业生产的投入产出比，降低生产成本。

Study on the level of tumor necrosis factor and the dilution of antibody to heat stress protein 70 in workers exposed to coke oven emission

焦炉作业工人血浆热应激蛋白70kD抗体滴度及肿瘤坏死因子水平的研究

Compared with deterwination results of two methods, it is shows that dilution heat method can reduce influence of analysis result causingly unburned coal in waste compost.

结果和结论：稀释热法可减少垃圾中的煤炭对分析结果的影响。

Investigation on Continuous Determination of Dilution Heat of Solution with a Constant Environment Temperature Titration Calorimeter

恒温式滴定量热计连续测定溶液稀释热的研究

The results show that the TiC laser clad layer is divided into two regions: clad zone and dilution zone. Clad zone which is not diluted by substrate is made up of TiC particles and TiC dendrites;

结果表明：TiC激光熔覆层分为熔覆区和稀释区两个区域，熔覆区未受到基底的稀释，由TiC颗粒和TiC树枝晶组成；

The model can predict the effect of change in dilution zone design or combustor operating conditions on the change of combustor exit radial temperature profiles based on exit temperature measurement before the change.

该模型能够由第一次试验得到的出口温度分布，推算出燃烧室掺混区设计修改后或工作状态改变后，燃烧室出口平均径向温度分布曲线的变化。

A sample preparation method with low dilution factor has been applied to the analysis of geological samples by X ray fluorescence spectrometry.

研究制定了在X射线荧光光谱分析中适用于多类型地质样品的低稀释比制样技术。

The dilution factor was determined with Rhodamine-B as a tracer.

本文报道了在青岛大港进行了稀释因子的现场模拟试验。