有效质量

Because the specific impulse of electric propulsion is ten times more than the chemistry propulsion, it appears very important in the application of satellite attitude control and station keeping, aerocraft deep space exploring and interstellar travelling. It can increase the payload and extend life, decrease the passive weight.

由于电推进的比冲比化学推进比冲高出一个数量级，因而在卫星姿态控制、位置保持以及空间飞行器深空探索、星际航行的应用中有重要意义，它或可以提高有效载荷、延长寿命，或可以降低消极质量。

Grass mulch can increase soil moisture content, soil temperature, and ameliorate regional soil quality.

喷灌、覆草措施可有效增加土壤温度，提高土壤含水量，改善区域内土地质量。

Simulation experiments shows that the method is very effective, not only the reconstruction quality is improved, but also the fuzzy phenomena which caused by smoothing using Box template is overcomed

仿真实验表明该方法非常有效，不但提高了重建质量，而且克服了利用Box模板进行平滑所造成的图像模糊现象。

Concrete components have flaws, such as loose, hole, slit band and so on. These flaws not only lead to the change of acoustic velocity, but also have strong absorption and attenuation action to the acoustic wave. It is an effective method to detect engineering quality of concrete components by using acoustic velocity CT and attenuation CT combined detection technology.

混凝土构件中存在的诸如松散、空洞、缝隙夹层等缺陷，不仅造成声波速度的变化，而且对声波具有较强的吸收衰减作用，利用声波速度CT和衰减CT联合检测技术是检测混凝土构件工程质量的有效方法。

The paper,tak-ing the mechanotronics speciality as an example,raises a new training model-six modules,three teaching stages and three skill certificate,that is,"six-three-three "training model,thus reaching the goal of passing vocational qualifi-cation rank examination easily.

为有效地保证人才培养的质量，使高职教育教学改革工作健康、有序地发展，必须以社会需求为目标、以就业为导向作为高职教育教学改革的指导思想，合理构建人才培养新模式。

Now to match our business, we decide to have company in China so that we can better control quality and delivery in mill side , more efficiently work for buyers, and enlarge our local business.

由于公司业务的扩展，设立上海公司，更有效的控制工厂的质量交期，更快捷高效地为客户服务，同时开拓国内市场。

Now to match our business, we decide to have company in China so that we can better control quality and delivery in mill side , more efficiently work for buyers, and enlarge our local business.

由于公司业务的扩展，现设立上海公司，更有效的控制工厂的质量交期，更快捷高效地为客户服务，同时开拓国内市场。

Blending the traditional hydraulic computation method with the genetic algorithms to realize the sewer pipe network optimal design can improve the design equality and efficiency of sewer pipe network design and is worth to be used in project practice.

将传统的污水管网水力计算方法与新型的遗传算法有机融合进行污水管网优化设计，能有效提高工程设计效率和设计质量，值得在工程实际中加以推广应用。

The experiment's result shows that neural network used in the mass evaluation can effectively distinguish nut, screw and ball with different mass.

结果表明，神经网络用于跌落物质量估计是可行的，神经网络划分的结果能有效地区分不同状态下的螺母、螺钉和钢球。

Moreover, root cutting and potassium application seemed to increase tobacco yield, improve leaf quality and output value.

从产质量上看，采用断根追钾措施，有效提高了烤烟产值量，降低了上部烟叶烟碱含量，提高了烟叶含钾量，改善了烟叶的品质。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。