简便

In this paper, a method of the optimum design for a semi-active structure controlled by MR damper system is presented, response of the first vibration mode of the structure is controlled by this method, and both safety and economic demands of the structure are satisfied.

提出一种用于中底层建筑MR半主动控制阻尼器优化设计的方法，它是以控制结构的第一振型反应为目标，可以兼顾安全和经济两方面的要求，且设计过程较为简便。

J31 Series Straight Side Presses Fixed is my company's traditional products, product stability and durability, with a loaded feature of moduli space, operation, maintenance is simple, suitable for punching, blanking, bending, stretching, correction, cold stamping and other techniques, both deep drawing, strong punching, extrusion and other functions.

J31系列闭式固定台压力机是我公司生产的传统型产品，产品稳定耐用，具有装模空间大特点，操作、维修简便，适用于冲裁、落料、弯曲、拉伸、校正、冷冲压等工艺，兼备深拉伸、强冲裁、挤压等功能。

By combining these indices with seven thermodynamic properties reported in literature of such PCBs, including standard entropy (S0),standard enthalpy(H0),standard free energy(G0),total energy,thermal energy correction,zero-point vibration energyand constant volume molar heat capacity (C0V), a series of quantitative structure property relationship .

本文在前面工作[13-14]的基础上，建构了一种新的定位指数mW及基团对应指数D，用mW结合D与多氯联苯的热力学性质进行关联，建立了良好的预测模型，取得了与文献方法[15]同样优良的估算和预测结果，而本法采用的变量较少，计算也较为简便。

Additionally, the experimental values well agreed to that calculated by structure information estimation method and molar volume method.

并且运用结构法和摩尔体积法估算了苯及其简单同系物的溶解度和分配系数。估算结果与实验结果能较好吻合，说明估算法是一种简便、可靠的方法。

Of all materials available, calcium phosphate cement is an important biomaterial for hard tissue repair because of its chemical and crystallographic similarity to the carbonated apatite in bones and has received considerable attention. CPC consists of a mixture of fine particles of calcium phosphate salts, the CPC powder can be mixed with water to form a thick paste that can conform to osseous defects to form degradable hydroxyapatite, therefore, CPC's moldability, together with its excellent biocompatibility and osteoconductivity, make it a highly desirable material for orthopaedic repair.

磷酸钙骨水泥是一种非陶瓷型羟基磷灰石类材料，生物学特性与骨的化学组成相似，其良好的生物相容性和骨传导性引起人们的广泛重视，同时具有可吸收性，良好的蛋白亲和性，可复合骨形成蛋白而具有骨诱导性，制备简便、固化迅速、易塑形、在结晶过程中不产热等许多明显的优势使其广泛用于骨缺损修复、骨强化和骨替代。

At present, molecularly imprinted technology has borne a focus on developing a fast, simple and effective pre-preparation method for bio-sample in order to promote performance of model analysis instrument.

成为一种快速、简便和有效的生物样品预处理方法，是促进现代仪器分析效能增益的热点研究技术。

This paper introduces the use of vanadium-ammonium molybdate colorimetric method to estimate the phosphorus content in the manganese ore.

用钒—钼酸铵比色法测定锰矿中的磷含量，测定结果表明：相对偏差小于 2 %，测定范围 0 1～ 1 0 %方法简便快速，可满足生产要

According to the electrophilic substitution of α-Allocryptopin by ICl, it can be suggested that there are competitions of n-donors (such as N and O atom occurred in alkaloid or solvent molecules) with the conjugated π system in alkaloid molecule for iodine monochloride when charge-transfer complexes are formed, which may block the formation of pre-reactive π-complex intermediate, and thus suppress the electrophilic substitution.

这一方法标记过程简便，标记产物富集于有机相，易于进一步纯化，其放射化学纯度接近95%，标记率超过70%；ICl与α-别隐品碱的亲电碘化反应结果表明，生物碱底物或溶剂分子中的N、O等n电子给体可能与亲电试剂形成电荷转移络合物，竞争芳香亲电取代反应π络合物反应前体的形成，从而抑制碘化反应的发生。

Low-valent titanium reagent induced the monomolecular reduction of N-substitutedphthalimides supplied a new method of synthesis hydroxyl lactams. This method was moreeconomic, convenient and in higher yields comparing with other methods reported before,therefore it has practical value.

4低价钛试剂引起邻苯二甲酰亚胺的单分子还原反应提供了一种合成羟基内酰胺的新方法，和文献方法相比，我们的方法试剂便宜易得，毋需溶剂，操作简便，收率也有所提高，具有实用价值。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。