查询词典 drag iron

The oxide bound iron, copper to available iron, copper and carbonate bound manganese, zinc to available manganese, zinc has positive effect, but residual iron, copper to available iron, copper and oxide bound manganese to available manganese have negative effect.

铁锰氧化物结合态铁、铜对有效态铁、铜及碳酸盐结合态锰、锌对有效锰、锌具有一定正效应。

At first, the difference of the iron chloride and iron nitrate precursor was studied. By the photoelectrochemical results, the film prepared by iron chloride precursor showed better photoelectrochemical response than the film prepared by iron nitrate precursor, and the reasons were discussed.

研究中首先比较使用氯化铁前驱液与硝酸铁前驱液所制备出的氧化铁薄膜的差异，由实验结果知道，使用氯化铁前驱液的薄膜，其光电化学表现比使用硝酸铁前驱液的薄膜来得好，而研究中也探讨了其可能的原因。

The whole level of steel and iron profession development enhancement is the key aspect that affects the steel and iron trade enterprises, concrete manifestation for steel and iron production enterprise's marketing policy, to own marketing channel, agent's request; the terminal user of steel and iron product to settle accounts, the product quality, the physical distribution as well as the correlation service for own goods supply enterprise's finance and so on set a higher request.

钢铁行业的整体发展水平的提高是影响钢铁贸易企业的关键因素，具体表现为钢铁生产企业的营销政策、对自身营销渠道、代理的要求；使用钢铁产品终端用户对自身供货企业的财务结算、产品质量、物流以及相关服务等提出了更高的要求。

In the end the paper takes a empirical study on our country's iron and steel industry and reaches a conclusion as follows: the optimal concentration point of our country's iron and steel industry is to keep 35 to 70 iron and steel companies in the whole industry and the optimal scale of iron and steel company is to keep 1.73 to 2.60 million tons.

本文最后还结合我国钢铁产业实际，测定2000年我国钢铁产业的最优集中区间为产业中保持有35-70家钢铁企业，钢铁企业的最优规模区间为173-260万吨。

Results showed that amino acid cheleted iron was molecular coordination compounds in liquids and had low molar conductivity, Among them, methionine chelated iron and glycine chelated iron was stable in pH 2.0~6.0 solution, the histidine cheleted iron was stable in pH 2.0~8.0 solution .

为探索更有效的脱酸方法，实验研究了在固相体系中气流A脱酸的可行性，结果发现，气流A既能起到很好的脱酸效果，又能缓慢地引发螯合反应，维持反应体系温度的稳定，其脱酸率达到94.60%。

Beijing University to my company for technical support, mainly with the production of various municipal facilities gray iron, ductile iron covers, gray iron, ductile iron water pipe fittings.

我公司以北京高校为技术依托，主要生产与市政设施配套的各种灰铁、球墨铸铁井盖，灰铁、球墨铸铁给水管道配件。

The incorporated model is evaluated by simulation results of two different building aerodynamical scheme in southeast region of Beijing area, which are building drag scheme and aerodynamical urban canopy scheme. The conclusions are drawn by the comparisons between the simulation results of the wind speed and the observations of the automatic weather stations in the urban areas: the simulated results of incorporated model are more in reasonable agreement with the observations than that of building drag scheme, and the diurnal trend of that is more agreement with observations.

采用建筑物拖曳法和建筑物动力冠层方案两种不同建筑物动力学处理方法对北京地区东南部进行模拟，通过城市地区水平风速的模拟结果与自动气象站实测资料对比发现模拟结果与实测相当吻合，建筑物动力冠层方案的引入能够更好地实施对城市地区的水平风速分布的数值模拟。

In this paper,the drag-reducing surfactant solution flows in a fully developed turbulent channel flow have been analyzed experimentally using Phase Doppler Anemometry and thermocouples in order to study the temperature fluctuations and heat transfer characteristics on the drag-reducing and heat transfer reduction phenomena of the surfactant solution flows.

该文针对在水中添加阳离子表面活性剂产生的减阻作用同时降低传热性能的现象，应用相位多普勒激光测量系统和热电偶温度测量系统对二维流道内表面活性剂减阻流体热边界层内的湍流温度脉动以及传热特性进行了实验研究。

The experimental results show that:(1) for ideal spheres, the attenuation coefficient of velocity is constant, the air drag coefficient is slightly affected by the initial velocity and is a linear function of initial velocity, and (2) for real fragments formed by a warhead, the flight performances are different from ideal spheres, the air drag coefficient is affected by the flight velocity and is a linear function of flight velocity.

实验结果表明：(1)对于理想球形钨合金破片，在同一初始速度条件下，衰减系数为常数，空气阻力系数与初始速度有关，两者成线性关系；(2)对于经历爆轰驱动的球形钨合金破片，由于有轻微的质量损失和变形，速度衰减规律与理想球形钨合金破片有明显的区别，空气阻力系数与飞行速度有关，两者成线性关系。

In determine the coefficient of drag, the group piles drag coefficient curves are obtained through channel experiment and the conclusion is put into numerical model for simulating several engineering condition .

本文从水流的基本控制方程出发，对经典的N～S方程进行应用，引入阻力项以更好的反映群桩阻力对水流的影响。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？