重量减轻

F. pumila had the strongest capacity to adhere to walls, and it formed a quite good covering landscape by means of a large quantity of adventitious roots. Furthermore, it was tolerant to shade, and the effects of shading on its growth and landscape covering were very small. P. heterophylla had the rapidest growth and covering speed, and it adhered to walls by adhesive discs, but was defoliated in winter or after a long period of shading. The other three vines climbed walls using adventitious roots, and their adhering capacities were all relatively poor. However, E. fortunei still formed a relatively good covering due to its rapid growth and emerald leaf colour. After shading for four months, leaves of F, pumila, C. grandiflora, and P. serpens became thin, and accordingly their leaf weight per unit area significantly decreased. Shading also reduced chlorophyll contents of C. grandiflora and E. fortunei but enhanced those of F. pumila and P. serpens, It did not influence leaf thickness, leaf weight or chlorophyll content of P. heterophylla. Whether shaded or not, the relationship between Pn and PAR for each species could be expressed as y=alnx+b, and furthermore there was a significant (P.01) correlation between them. Pn and LCP values for all five lianas also significant (P.01) correlated. Shading reduced LCP values of P. heterophylla, C. grandiflora and E. fortunei but increased LSP of F. pumila.

结果表明，1薛荔对墙体附着力最强，它依靠大量的不定根吸固在墙体上，形成很好的覆盖效果，而且薜荔耐荫，遮光对其生长与覆盖的影响很小；爬墙虎的生长与覆盖速度最快，它主要依靠吸盘吸固墙壁，但在冬季或长时间遮光后出现明显落叶现象，影响其覆盖景观；其他3种都依靠不定根沿墙面攀援，附着力相对较差，但扶芳藤由于生长较快，叶色终年保持翠绿，也能形成相对较好的覆盖效果；2遮光4个月后，薛荔、凌霄和蔓九节的叶片变薄，相应地这3种植物单位面积的叶片重量都显著减轻；遮光还使凌霄和扶芳藤的叶绿素含量减少，使薛荔和蔓九节的增加，但对爬墙虎的叶片厚度、叶重和叶绿素含量都不产生明显影响；3无论遮光与否，5种植物的Pn与PAR之间的关系都可用y=alnx+b表示，并且都达极显著相关，Pn与光补偿点之间亦呈极显著相关；遮光还使爬墙虎、凌霄和扶芳藤的LCP下降，并使薛荔的光饱和点升高。

If you persisit in doing jogging , you will shed some weight.

如果你坚持慢跑，你将会减轻一些重量。

If you persist in jogging ,you'll shed some weight

你坚持慢跑，你将减轻重量

This makes the Spoiler to produce the driving up force and lighten weight of the bike.

这使得尾翼产生向上的动力，并减轻对自行车的重量。

The Puma v3.06 Leather Football Boot is based on maximising speed by featuring supersoft and lightweight full grain leather on the upper to reduce weight and increase comfort levels.

美洲豹v3.06皮革足球靴基于最大速度演出超轻量级和全粒面皮革上，以减轻重量和增加舒适程度。

This paper, which focused on the structure optimization theory and method, has finished such studies as follows: The three dimension model has been built, which provide the necessary conditions for the building of the dynamics equivalent model. By the launch dynamics simulation, the loads of the key joints when the rocket is launched has been got, which provide the necessary data for the finite element analysis and the structure optimization. The finite element model of the excess weight parts of the rocket has been built, buy the finite element intension analysis of the model in two conditions, the displacement and the stress of the key points have been got, which make us know the distributing of the stress and the transmogrification of the part. To satisfy the intension and the precision design request and to decrease the weight of the part as many as possible, the part has been topology optimized by the structure optimization theory and method. After that, the new model has been analysis in structure and launch dynamics. The contrast of the character change of the old part and the new part and the influence on the rocket system have been studied.

本文以结构优化理论和方法为核心，主要做了以下工作：建立了某自行火箭炮全炮三维实体模型，为建立该火箭炮系统的动力学等效模型提供了必要条件，进行了发射动力学仿真，得到该火箭炮发射装置各关键连接部位在发射状态下的载荷，为有限元分析和结构优化提供了必需的数据；建立了该火箭炮发射装置超重部分的有限元模型，分两种工况，对模型进行了有限元强度分析，得出了关键部位的位移和应力值，对其的应力和变形分布有了具体的了解；运用结构优化的理论和方法，对该火箭炮发射装置超重部分进行了拓扑优化，使其在满足强度和精度的要求下尽可能多地减轻重量，对优化后得到的模型进行了结构分析和发射动力学分析，对比了该部件优化前后的特性变化以及对火箭炮系统的影响。

The machine is canceled the underprop, wheel and axle are directly fixed on the reducer, so the machine is lightened its weight; the material cavity of the rotor is adopted a new style, such as trapeziform, roundness, multi-material cavities, it makes series of blowing, less spraying pulse.

本机型的设计取消了支撑架，轮轴直接固定在减速器上，减轻了重量；转子的料腔采用了新型的呈梯形、圆角、多料腔结构，使得进风连续，喷射脉冲小。

The machine is canceled the underprop, wheel and axle are directlyfixed on the reducer, so the machine is lightened its weight; thematerial cavity of the rotor is adopted a new style, such astrapeziform, roundness, multi-material cavities, it makes series ofblowing, less spraying pulse.

本机型的设计取消了支撑架，轮轴直接固定在减速器上，减轻了重量；转子的料腔采用了新型的呈梯形、圆角、多料腔结构，使得进风连续，喷射脉冲小。

No nails,siae ,uni-form dimension and easy to protect transporting goods;· High strength,good quality and durability;· Perfect frame and come feet, Full use of site and space in stack and transport;· Accesible from four sides by stacker and forklift truck;· Light weight,easy to handlle and reduce labour intensity;· Waterproof,anti worm and white ant, flame resistant and so on ,advantages etc

模压托盘产品主要优点有： 1 、无铁钉，尺寸稳定，整体性能好，能更好地保护运输货物； 2 、强度大，质量稳定，坚实需用； 3 、有完美的板架和锥型脚形，堆垛运输能充分利用场地和空间； 4 、有四个作业面，方便机械铲车多方向操作； 5 、重量轻，使用方便，减轻工人劳动强度； 6 、具有防水、防虫、防白蚂蚁和不易燃烧等优点，可多次及跨国重复使用。

Based on the theory and experiment mentioned above, a new plasma ignitor design to prolong the life-span and reduce the weight with a forced-cooling electrode was presented.

在上述理论研究与试验研究的基础上，为了延长电极寿命和减轻重量，作者设计了一种具有电极强制冷却的新型等离子点火器。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。