The overproof rate are 27 . 5 % - 43 . 3 % in 1 - 3 months and 8 . 9 % - 18 . 0 % in 6 month after decoration 抽样调查监测本市某区114间公共场所及家居室内空气中甲醛含量。
2.
The amounts of formaldehyde in 114 of homes and public space in one district of jiangmen city were monitored and analyzed , 16 % of which are overproof 摘要了解本市区公共场所及家居室内空气中甲醛污染状况。
3.
A realistic and important question for manufacture and user of crank is how to settle the question jumping overproof of crank under the condition of crank without influence 在保证曲轴原有的组织和性能不受影响的情况下，解决曲轴跳动量超差问题，对曲轴生产厂家和使用单位来说是一个现实而重要的问题。
4.
Hardness is its most important capacities , whereas , because of hardness overproof caused by some reasons , during the practical quenching and temping process , low - alloy steel ca n ' t satisfy the need of producing technology 而硬度是其最主要的性能指标之一，在实际调质处理过程中，因各种原因而容易导致硬度超差，从而无法满足生产工艺的要求。
5.
42crmo steel crank possess high proportion in the manufacture of crank . the research as a example of 42crmo steel crank , study feasibility and dependability of jumping measurement overproof alignment technology for crank 42crmo钢曲轴在我国曲轴生产中占有很大的比例，本项研究就是以42crmo钢曲轴为例，研究曲轴跳动量超差校直工艺的可行性和可靠性。
6.
Crank of internal combustion engine after every process and hot surface treatment will produce fairly deformation , that is jumping overproof . so alignment without destroy for its tissue and property is important factor which ensure operation of crank safely 内燃机曲轴在各加工工序及表面热处理后会产生一定的变形即跳动超差，对其组织和性能无破坏的校直是保证曲轴安全运行的重要因素。
7.
Failure situations on bearing bushes from october of 1999 to the two units are generalized , the main causes are divided into four classes : bearing bushes with low quality , overproof on dynamic balance , bad crapping to bearing bushes , and bad fluid oil 通过对该厂1999年10月投产以来的两台离心鼓风机的轴瓦失效情况进行的统计，将造成轴瓦失效的主要原因分成4类，即：轴瓦质量差、转子动平衡超标、研刮不良以及润滑油油质不佳等。
8.
The subject for different process technology and surface treatment of crank takes tracking checkout for its internal stress , analyses relation of jumping measurement , deformation measurement , recovery measurement and stress change , finds the reason and usual law of jumping overproof of crank . through cold pressure alignment , hot pressure alignment , support aged alignment and so on methods for 42crmo steel crank , the subject checks change of stress in the process of alignment and change of tissue and property after alignment for crank , and gives comprehensive evaluation for every alignment technology , then give safe and feasible technology parameter 本课题主要是对不同加工工艺及不同表面处理过程的曲轴，对其内应力进行跟踪检测，分析各工艺过程中跳动量、变形量、恢复量与应力改变的关系，找出曲轴跳动量超差的原因和一般规律。通过对42crmo钢曲轴进行“常温压力校直” 、 “热压力校直” 、 “支撑时效校直”等方法的校直，检测校直过程中曲轴应力的变化及校直后组织和性能的改变，进而对各校直工艺进行综合评价，给出安全可行的工艺参数。
9.
The imported transparent glaze fired at lower temperature was analysed semi - quantitatively by adopting emission spectroscope . the stripping of lead and cadmium from this transparent glaze fired at lower temperature in ceramic product was determined by atomic absorption spectroscope . the effect of chemical composition on the stripping of lead and cadmium was analysed . upon the author s opinion , the overproof lead stripping from the imported transparent glaze fired at lower temperature can only be settled by adopting lead - free glaze instead of adopting low - lead prescription . the author succeeded in developing an excellent lead - free transparent glaze fired at the lower temperature of 1000 1050 . the success is based on an inquiry into the feasibility of using such new agents of fusion as li2o and sro in replacement of pbo ; and on a study of the effects of the contents of sio2 ， al2o3 ， b2o3and other metallic oxides on such performances of glaze as coefficient of linear expansion , fusion temperature and transparency . it is also based on an analysis of coefficient of linear expansion of blank and glaze on an analysis of coefficient of linear expansion of blank and glaze on their correlation ; and on a study of technology for preparing glaze 采用发射光谱仪对进口低温透明釉进行半定量分析，并用原子吸收光谱仪测定其陶瓷制品的铅、镉的溶出量，分析化学成分对铅、镉溶出量的影响.结果表明,进口低温透明釉采用低铅配方不能解决铅溶出量的超标问题，只有采用无铅釉才能解决.探讨用氧化锂和氧化锶等新型熔剂完全代替氧化铅的工艺，研究釉料中氧化硅、氧化铝、氧化硼和各种金属氧化物的含量,对釉的线膨胀系数、熔融温度和透明度等性能的影响.分析坯料、釉料的线膨胀系数及其相互关系和釉料制备的工艺，研制出优质的1000 1050低温无铅透明釉
