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A hybrid simply introduced with the ae gene is usually lack of commercial value because its amylose content is only about 50%. It may be effective to improve the amylose content to gather modificatory genes by recurrent selection.

遗传背景对直链淀粉含量的影响主要表现为非加性效应，注重正向修饰基因的积聚，通过轮回选择等手段提高育种群体直链淀粉含量，是高直链淀粉玉米育种的有效途径。

The δ13 is-1.63‰~2.31‰ and averages 0.25‰δ18O is-11.49‰~6.02% and averages-8.72‰. The content of Sr is low, 77×10^(-6)~107×10^(-6), the content of Fe and Mn are high. The degree of order is high and the molar volume of CaCO3 is low.

13C值为-1.63‰~2.31‰，平均为0.25‰，δ18O值为-11.49‰~-6.02‰，平均为-8.72‰；锶含量较低，在77×10^(-6)~l07×10^(-6)之间，二价铁、锰含量较高，具有高的有序度和低的CaCO3摩尔含量的特点。

The research result shows that the flowability, moldability, cohesiveness of high performance concrete of hill sand are significant by comparison with ordinary concrete on mechanical properties, long term properties, and durability. Motar flowability decreases with the increase of single-mixed active additive. The flowability can be largely improved by double mixing of active additive and super plasticizer NF. This is because not only the active additive has filling effect but also the dispersing effect induced by surface action between additive and super plasticizer NF. And the optimal content of materials are: super plasticizer NF≥0.8%, fly ash 20%, PS 20~30%,zeolite powder≤20%,SF 5~8%; The negative influence of hill sand powder should be avoided by controlling of powder content and the use of active additive and super

研究表明：随着单掺活性掺合料掺量的增加，砂浆流动性减小，活性掺合料与萘系高效减水剂NF双掺使用，比使用同样剂量萘系高效减水剂NF的基准浆体流动性明显增大，这是由于玻璃体材质活性掺合料不仅有填充效应，更主要的是它与高效减水剂之间的表面物化作用产生了分散性，而活性掺合料对浆体的流化作用效果主要是依赖于其分散性；能有效改善胶砂流动性的适宜掺量为：萘系高效减水剂不小于0.8%，粉煤灰掺量为20%，PS掺量为20~30%，沸石矿粉掺量不宜大于20%，SF掺量为5~8%；通过对粉末含量的限制，并借助活性掺合料、高效减水剂的合理使用，就可以避免山砂粉末含量的负面影响，配制出密实度高，抗渗性能优异，具有良好的耐久性能，并具有良好的体积稳定性的山砂高性能混凝土。

DFerric Perchloric acid method was used to determine the content of ester-series alkaloid, and acid dye colorimetry was used to determine the content of total alkaloid in Complex Prescription Monkshood plaster.

方法分别采用改良异羟肟酸铁－高氯酸铁法及酸性染料比色法测定制剂中的酯型生物碱及乌头类总生物碱的含量。

MethodsFerric Hydroxamic acid―Ferric Perchloric acid method was used to determine the content of ester-series alkaloid, and acid dye colorimetry was used to determine the content of total alkaloid in Complex Prescription Monkshood plaster.

方法分别采用改良异羟肟酸铁－高氯酸铁法及酸性染料比色法测定制剂中的酯型生物碱及乌头类总生物碱的含量。

Water content of material monohydrate soda was 18%～19%,and salt content of product was controlled to lower than 0.3%.

因此 ，国内许多纯碱生产企业将生产优质低盐重质纯碱作为产品结构调整的重要任务。

In the main content aspect that rich guest involves, main content is the rich guest of 47% the interior monologize of rich traveler writer or mood record.

在博客涉及的主要内容方面，47%的博客主要内容为博客作者的心灵独白或心情记录。

The emulsion has best performance when the ratio of core and shell components is 7/10 and the water content is 1.2 times of the monometer content.

SEM对涂层玻璃纤维布的表面进行观察发现，核壳比为7/10时，乳液具有最好的黏附性能。

The specimen with the content of mullite in matrix is 20% was sintered at 1550℃, the specimens with the content of mullite in matrix is 10% and 5% were sintered at 1600℃.

基质中莫来石含量为20%的试样在1550℃达到致密烧结，基质中莫来石含量为10%和5%的试样在1600℃达到致密烧结。

By determining the calcium content,phosphorus content and their proportion in the eggshells of France Muscovy duck in different hatching stages,the changes of calcium and phosphorus contents in its eggshells in different incubation stages were studied.

方法通过对不同孵化时期法国番鸭蛋壳内钙、磷含量及比例进行测定，研究了不同孵化阶段蛋壳内钙、磷含量的变化。

At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。