使有效

The introduction of methoxyphenyl or fluorenyl endows significantly enhanced electron-accepting capability,and the LUMO energy level decreases from-3.50 eV of 1a to-...

同时，大尺寸芳香取代基的引入有效抑制了由于分子聚集而引起的荧光淬灭，使三亚吡嗪化合物的荧光量子效率从化合物1a的0.23提高到化合物1b的0.81和化合物1c的0.87。

These four aspects are: the foreworn and frature of the wheel rim , tread foreworn bedded d ecrustation, regional crush and subside and early brittle fracture of the wheel rim .

为了有效地提高行走车轮的工作寿命，使其接近或达到设计周期，笔者从车轮损坏的形式、部位即轮缘磨损断裂、踏面磨损层状脱皮和局部压碎凹陷、轮缘早期脆性断裂四个方面进行了分析，找出了之所以产生磨损和断裂的原因，并提出了延长车轮工作寿命的对策。

The oxidant 〓 plays indirect role in dissolving gold, and mainly controls the mix potential of Au in the alkaline thiourea solution. In which the "mix potential"is the decisive factor affecting the dissolution of gold. The reaction driving force is enough to have formamidine disulfide oxidize Au to Au〓 at the potential of about 0.4V. And then thiourea molecular complexes with Au〓 ion soon, which causes the fast dissolution of gold in the alkaline thiourea media. The dissolved weight of gold in 0.25 M thiourea solution with 0.05M Na〓SO〓 and 0.1M 〓 of pH 12. 5 by air at the temperature of 303K is 7. 8mg·cm〓 within 1hr.

在碱性硫脲溶金过程不起直接作用，而是通过S〓O〓来控制二硫甲脒有效形成的金在溶液中的混合电位；&混合电位&是影响碱性硫脲溶液溶金与否的决定性因素，在0.4V左右，有足够的推动力致使二硫甲脒氧化Au成Au〓，随后硫脲与Au〓络合形成稳定的络离子Au〓，从而使金快速溶解；温度为303K、pH为12.5时，在含0.05MNa〓SO〓、0.1M 〓及0.25M硫脲的溶液中，鼓入空气，金的溶解量在1hr内为7.8mg·cm〓；铜只有微量溶解，银、镍、铁则几乎不溶解。

This method not only can make every steps in the evolu-tion procedures froom abstract specification to effectiveiy executable programs natural and eiear,but also can evaluate the correctness of the results of refinement in order to discover the problems and resolve them eariler.

这种方法不仅能使从抽象描述到可有效执行的程序的逐步演化过程中的每步求精自然简明。而且能对每步求精的结果进行正确性评估、尽早发现问题、解决问题。

It has developed more strict gaited effective management system for fixing with advanced Marketing Economy.

兰江公司在继承和发扬中石油第二建设公司科学的管理办法和丰富的管理经验的同时，创建了自己更加严谨、灵活有效的管理体制，使自己更加适应现代市场经济的发展需要。

GEMMY colorful artistic grounds (Lamination series, molded paper series, spray mold series and acid-coloring series)can create a variety of natural stone, bricks, wood effect in ordinary concrete surface with a beautiful natural, real and lasting color, texture durability and other characteristics.

真石丽彩色艺术地坪（压模系列、纸模系列、喷模系列及酸着色系列）能在普通混凝土表层创造出各种天然石材、砖材、木材效果，具有美观自然、色彩真实持久、质地坚固耐用等特点；琪石彩色生态透水地坪拥有15%至25%的孔隙，能使雨水直接渗入地下，有效地补充地下水，缓解城市热岛效应，能够保护城市自然水系不受破坏，具有很强的环保价值。

Qianshou pumpkin juice contains no cane sugar, artificial color, antiseptic, glucide, medicamentous ingredient; its sweet taste is elaborate allotment with xylitol and AK sugar which drop out of glycometabolism, these ingredients suit to our body need.

精细的加工手段，不仅使产品的有效生物活性物质得到了保留，确保了产品功效，而且各项理化和微生物指标均达到了国内外标准；牵手南瓜汁中不含蔗糖、不含人工色素、不含防腐剂、不含糖精、不含任何药物成份，其甜味是以适合人体需要的木糖醇和不参与糖代谢的AK糖精心调配

Niger treated with dibromo- dichloro - glycoluril disinfectant.

结 果以含有效成分284mg／L的二溴二氯甘脲消毒剂作用30min，可使枯草杆菌黑色变种芽胞杀灭率达到99.99％。

This kind of reform includes: Researching object field, the research that produces an impact by the opposite in the past turns into the research to producing kind; On the structure, by the past " 3 chunk " turn into an organic whole; On content, by grumous in the past doctrine history the illuminate of the fundamental that colour turns into to move to economy and basic rule; On the method, bold the scientific effective method in drawing lessons from western economics, the analytic research technique that makes us traditional gets plenitude.

这种改革包括：在研究对象方面，由过去的对生产关系的研究变为对生产方式的研究；在结构上，由过去的&三大块&变为一体；在内容上，由过去浓厚的学说史色彩变为对经济运行的基本原理和基本规律的阐释；在方法上，大胆借鉴西方经济学中科学的有效的方法，使我们传统的分析研究方法得到充实。

With the different laboratory compaction method and the real pavement, the study of particle stability and density indicated that Marshall compacted specimen can not simulate the real pavement, the rolling and gyratory compacted specimen are the most similar with real pavement, vibrating compacted specimen is second similar with the real pavement.

针对不同试验室压实方法成型试件和实际路面，从集料颗粒的稳定性和密实程度两个角度的对比研究表明，马歇尔击实成型试件法无法有效模拟实际路面，表现在其粗集料颗粒主轴取向无统计规律且与实际路面不具相关性；轮碾压实和旋转压实试件具有与路面最接近的稳定性和密实程度；振动压实次之，虽然表现出具有使颗粒较好均匀分散成型的特点，但其粗集料颗粒骨架的稳定性不够理想，致使其密实程度相对不高。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。