The theory that answered these questions came from a seemingly unlikely individual , an awkward , colorless , poorly educated teacher named john dalton 一个能回答这些问题的理论由一位看上去个性并不突出、笨拙而无光彩,没有受过高等教育的教师j ?道尔顿提出来了。
The theory that answered these questions came from a seemingly unlikely individual , an awkward , colorless , poorly educated teacher named john dalton 一个能回答这些问题的理论由一位看上去个性并不突出、笨拙而无光彩,没有受过高等教育的教师j 道尔顿提出来了。
Materials and articles in contact with foodstuffs - plastics - polymeric additives - test method for the determination of the mass fraction of a polymeric additive that lies below 1000 daltons 接触食品的材料和物品.塑料.聚合添加剂. 1000道尔顿以下的聚合添加剂的质量系数测定的试验方法
Actually , the project method and dalton plan in curriculum reform in the early 20th century have offered us certain experiences on how to respond to such a challenge 如何应对这种挑战,实际上,历史已经给我们提供了一定的借鉴,那就是20世纪初国文课程改革中的设计教学法和道尔顿制。
Howeer , recently it has been shown that when tritium - labeled albumin is injected into humans , the majority of tritium - labeled peptides in the urine are low molecular weight ( < 10 , 000 daltons ) 但最近的研究却显示:将氚标记的白蛋白注射入人体后,出现在尿液中的氚标记的白蛋白分子量很低( < 10 , 000道尔顿) 。
According to dalton ' s law of partial pressures , the principle of experiment " determination of the ideal gas constant r " , the volume and pressure of hydrogen produced in the experiment were analyzed and discussed 摘要从道尔顿分压定律出发,对教学实验“理想气体常数r的测定”中产生的氢气的体积、分压和该实验的原理进行了详细的分析和讨论。
The prunes are part of a collection of world war ii memorabilia collected by a british woman , the late doreen mulot , a former member of britain ' s special operations executive , which was set up to carry out operations behind enemy lines 穆洛曾经是英国特别行动委员会的一名成员。二战时期,丘吉尔和休斯道尔顿建立了特别行动委员会,旨在敌后方实施非军事交战的秘密抗敌行动。
The test indicated that 12 - 24 hours provided ample time for iron complexation to occur and that soluble fe ( ) complexed by lower molecular weight doc was more readily removed by biological oxidation . soluble fe ( ) was complexed with lower molecular weight , especially 腐植酸和亚铁离子发生络合反应最多只需要24小时;亚铁离子更容易与低分子量的腐植酸络合,亚铁离子更容易与分子量小于4k道尔顿的腐植酸络合。
It includes the whole story about experiment of project method and dalton plan in chinese , such as its sponsor , its basic teaching pattern and characteristic . at the same time , this chapter also give some cases in the specific enforcement in teaching , and analyzed its influence on teaching practice 包括设计教学法、道尔顿制在中国实验的始末、推广人、基本教学模式和特点;同时列举了它们在教学中具体实施的一些案例,分析其给教学带来的实际变化。
The results show that uf is efficient for the removal of bacteria and turbidity with the 99 % removal of bacteria achieved and residual turbidity within 0 . 02 ntu in the treated water ; the uf resulting toc and uv _ ( 254 ) removals of ha are 30 % and 40 % ; there is no obvious difference of ha removals between the uf membrane with a mwco of 10 kdaltons and the other one with a mwco of 1 kdaltons 实验结果表明,超滤具有良好的灭菌和除浊功能,细菌去除率达99以上,过滤出水的浊度能控制在0 . 02ntu以内,直接超滤对腐植酸toc去除率为30左右, uv254的去除率达40 ,截留分子量为10万道尔顿和1万道尔顿的两种超滤膜对腐植酸的去除效果无明显差别。