查询词典 base 2

Base on the principle, the main circuit and control circuit of 2-phase hybrid stepping motor systems are designed. The system can realize many functions such as fix-frequency pulse width modulation, current sampling, power magnifying, ring distribution, producing control signal, and so on.

完成了对二相混合式步进电动机微步驱动系统主电路及控制电路的具体设计，实现了恒频斩波、信号检测、环形分配、微步信号的产生等功能，并搭制了实验电路进行实验验证。

In Chapter 2, equalization is described as a space mapping in the geometry space with the view of mathematics, which establishes the base for the application of Neural Networks.

第二章用数学的观点将均衡问题表述为几何空间的区域划分判决问题，为神经网络的应用奠定基础。

A maximum method for measuring surface tension coefficient;2. A discussion on the maximum positions of a function and its transform;3. There are the minimum and the maximum of ionicity of weak acid and weak base.

在化学教学中，涉及到弱酸和弱碱的电离度，弱酸和弱碱的电离度存在极小值和极大值，用稀释定律求算电离度会引起的一定的误差。

Shanghai light breeds course of study built 30 thousand milker raise base, signed the production that suckle a source with outskirt county farmer, collect a contract to make; 3 yuan of milk industry of Beijing are bought in succession breathe out alliance Hailaer is milkings factory, full continent Lizalai if 85 ％ of company of milkings of husband of card of Er milkings factory, Beijing are foreign equity; Shijiazhuang industry of 3 deer milk early or late with Tangshandi 2 milkings factory, Cheng Dehua breeds the 10 milkings enterprise such as company of milkings of factory of milkings of grass of source of course of study, buy, Jun Lebao undertook recombining rather; Heilongjiang is over industry of the milk that amount to hill and implementation of industry of crane king milk are amalgamative recombine, make a pine tender the 5 milkings factory of Campagna, 8 product line, treatment milkings ability increases 15 thousand T again, the development road of these successful companies makes clear: Produce advantage of ground predestined relationship, enterprise of bibcock of implantation agriculture industrialization, walk along dimensions to change management way, executive brand strategy, can make cultivate industry of course of study, aquaculture, treatment to obtain industrial chain type to develop, flourish already local economy, enhanced people health again, form the benign loop of business economic benefits and social benefit.

上海光明乳业建立了3万头乳牛的饲养基地，与郊县农户签订了奶源生产、采集合同制；北京三元乳业相继收购呼盟海拉尔乳品厂、满洲里扎莱若尔乳品厂、北京卡夫乳品公司85％外方股权；石家庄三鹿乳业先后与唐山第二乳品厂、承德华宁乳业、沽源牧场乳品厂、君乐宝乳品公司等10家乳品企业进行了重组；黑龙江完达山乳业与鹤王乳业实现合并重组，使松嫩平原的5个乳品厂，8条生产线，加工乳品能力又增加1.5万t，这些成功企业的发展道路表明：发挥地缘优势，培植农业产业化龙头企业，走规模化经营之路，实施品牌战略，可以使种植业、养殖业、加工业获得产业链条式发展，既繁荣地方经济，又增强了人民健康，形成企业经济效益和社会效益的良性循环。

The surprise attack by Japan on the United States Army and Navy base at Pearl Harbor sank 4 battleships, 3 cruisers, 3 destroyers, and 1 minelayer; destroyed 188 aircraft, killed 2,402 people and wounded 1,282 others.

日本偷袭珍珠港的美国陆军和海军基地击沉了4艘主力舰、3艘巡洋舰、3艘驱逐舰和一艘布雷舰；破坏了188架飞机、造成2402人死亡、1282人受伤。

The qualified 10B naphthenic type rubber filling oil is developed by taking hydrodeacidifying oil from Liaohe naphthene base vacuum cut 2 as raw oil.

经过实验室研究，以辽河环烷基减二线加氢脱酸油为原料，生产出合格的 10B高级环烷型橡胶填充油，产品通过了岳阳石化橡胶厂使用评定，10B高级环烷型橡胶填充油可以作为填充油生产SBS充油胶。

There are approximately five small vesicular lesions 2-mm in diameter on the cheek and nares with slight erythematous base.

生命体征均正常，小儿活泼、机灵、进食好，在面颊和鼻孔处均有5个直径为2mm大小的疱疹性损害，基底轻微发红。

Stamens 5; anthers erect, free or connivent or connate, connectives often dilated into membranous appendages; filaments very short or absent, anterior 2 stamens with spurlike nectary at base.

雄蕊5；花药直立，分离的、靠合或靠合，药隔经常膨大成膜质的附属物；花丝短或无，下面的两个蕊基部有距状的蜜腺。

Exive least-squares solutions, antire?exive least-squares solutions, bisymmetric least-squaressolutions, symmetric and antipersymmetric least-squares solutions, symmetric or-thogonal symmetric least-squares solutions, symmetric orthogonal antisymmetricleast-squares solutions and their optimal approximation to the linear matrix equa-tion AX = B, and solve them successfully. 2. For Problem II, we can convert it to another problem of finding the least-squares solutions with the least norm of a new consistent matrix equation. Onthe base of the solutions of Problem I we can apply the iterative method to get

本文所构造的迭代法的优点在于先利用法方程变换将求矩阵方程的最小二乘解转化为求一个相容矩阵方程的解的问题，再利用迭代法对于任意给定的初始矩阵进行迭代，均可在有限步内迭代出所求问题的一个解；可将问题II转化为求新方程的极小范数解的问题，同样用迭代法求解，从而系统且全面地解决了问题I、II在约束矩阵类如中心对称、中心反对称、自反矩阵、反自反矩阵、双对称、对称次反对称、对称正交对称、对称正交反对称矩阵中的最小二乘解及其最佳逼近问题。

Chapter 2, we investigate the existence of multiple positive solutions of the neutral partial difference equations on the base of the existed results of partial difference and difference equations, and obtain some sufficient conditions for the existence of multiple positive solutions.

第二章，基于已有的偏差分方程和差分方程的结果，我们研究了高阶非线性中立型偏差分方程多正解的存在性问题，建立了判断多正解存在的充分条件，对前人的结果进行推广。

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。