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During the intermissive fed-batch process, the feeding medium was added 10 times separately to make the total amount of C and N sources equal to those added in the batch process, and the yield of maduramicin was improved to 9645 μgmL^(-1), which is 15.7% higher than that obtained during the batch process. In the continuous fed-batch process, the maduramicin yield reaches 10328 μgmL^(-1), which is 6.0% higher than that obtained in the intermissive fed-batch process, and is 29.4% higher than that obtained in the batch process.

在间歇补料分批发酵工艺中，分10次补加培养基，使碳、氮源的总浓度与分批发酵相同，马杜霉素发酵单位提高到9645μgmL^(-1)，比分批发酵提高了15.7%；在连续补料分批发酵工艺中，马杜霉素发酵单位可达10328μgmL^(-1)，比间歇补料分批发酵提高了6.0%，比分批发酵提高了29.4%。

The way to prepare iodomethane using methanol, potassium iodine and acid as regents has the disadvantages such as many side reactions and low yield, while the synthesize route from dimethyl sulfate and potassium iodine has the advantages of high yield and simple separation.

醇与氢卤酸作用是制备卤代烃的常用方法，以甲醇为试剂，以碘化钾与酸作用生成氢碘酸制备碘甲烷的方法存在副反应多、收率不高的特点；而以硫酸二甲酯及碘化钾为试剂的合成路线具有操作容易、收率高、纯化简单的优点。

When the amount of SO(superscript 2- subscript 4)/ZrO2 catalyst was 7% of the mass of β-pinene, the yield of product was 62.0%, and the mass ratio of borneol to isoborneol in the product was 13.6:48.7. When the amount of S2O(superscript 2- subscript 8)/ZrO2 catalyst was 7% of the mass of β-pinene, the yield of product was 66.7%, the mass ratio of borneol to isoborneol in the product was 11.5:49.5. Both two catalysts were poor for borneol selectivity.

在上述反应条件下，当催化剂SO(上标 2-下标 4)/ZrO2用量为7%时（以β-蒎烯质量计，下同），粗龙脑产率为62.0%，产品中正、异龙脑比为13.6：48.7；当催化剂S2O(上标 2-下标 8)/ZrO2用量为7%时，粗龙脑产率为66.7%，正、异龙脑比为11.5：49.5；这两种催化剂对正龙脑选择性比较差。

Tests of FCC naphtha upgrading were conducted under such optimum reaction conditions (with a reaction temperature of 450℃), as compared with the untreated naphtha the olefin content of the treated naphtha decreased from 40.74% to 25.80%, the contents of isoparaffin and aromatics increased significantly, the computed octane number was 5.48 unit higher, yet the naphtha yield dropped 14.25 percentage points and the LPG yield increased 13.52 percentage points.

在450℃的优化条件下，催化裂化汽油改质后，烯烃质量分数由40.74%降至25.80%，异构烷烃和芳烃含量有较大幅度的增加，计算辛烷值RON提高了5.48个单位，汽油收率降低了14.25个百分点，液化气收率提高了13.52个百分点。

The material properties (ultimate yield strength, tensile yield strength, Kapp) and major performance attributes (fatigue crack growth, fracture toughness, static strength) of alloy 2199 wide-sheet and plate products also have contributed to their increased use.

2199合金宽板和金属板的物料性质（包括最终抗屈强度和抗拉屈服强度）和主要性能（包括疲劳裂缝增长，断裂韧度和静力强度）增强了产品耐用度。

To avoid the low yield in direct hydrosilylation addition of allyamine, 1, 1, 1, 3, 3, 3-hexamethyldisilazane is used to protect the amino groups, and the protective groups are removed easily after hydrosilylation addition, then the high yield of ladderlike copolymethyl-aminpropylsilsesquioxane was obtained.

为了克服将烯丙基胺直接与聚氢基甲基倍半硅氧烷进行硅氢加成反应接枝效率低的缺点，探索用六甲基二硅氮烷对烯丙基胺预保护，硅氢加成反应后再脱保护，从而以较高产率制备了含胺丙基、甲基的反应性梯形共聚倍半硅氧烷。

Treating ovary with CPPU significantly increased fruit yield especially the early yield in Lagenaria leucantha.

CPPU处理瓠瓜子房可显著增加瓠瓜果实的早期产量和后期产量，采收日期提早 2 0d左右，总产量提高 46%。

Ethanol yield could reach 20.52 g/L (74.5 %of theoretical yield) under the following conditions: fermentation temperature at 28 ℃, initial pH value as 5.0, 150 mL liquid loadage in 250 mL rotating flask, and rotating speed at 160 r /min, and 0.5 % corn steep liquor and 0.024 % urea. Tran. by YUE Yang

在28 ℃，初始pH值5.0，160 r/min，250 mL三角瓶装液量150 mL，木糖浓度60 g/L，玉米浆0.5 %，含尿素0.024 %的条件下，休哈塔假丝酵母发酵木糖能产乙醇20.52 g/L，得率达到理论值的74.5 %。

Ethanol yield could reach 20.52g/L (74.5%of theoretical yield) under the following conditions: fermentation temperature at 28 ℃, initial pH value a 5.0, 150mL liquid loadage in 250mL rotating flack, and rotating speed at 160r/min, and 0.5% corn steep liquor and 0.024% urea.

在28℃，初始pH值5.0，160r/min，250mL三角瓶装液量150mL，木糖浓度60g/L，玉米浆0.5%，含尿素0.024%的条件下，休哈塔假丝酵母发酵木糖能产乙醇20.52g/L，得率达到理论值的74.5%。

Based on the soil fertility and fertilizer effect of Beijing brown chao soil in the way of microtrial of winter wheatsummer maizer continuous cropping,the annual grain yield and the tenyear soil organic matter change show that the crops yield,soil organic matter and soil fertility can be improved significantly by using N P K chemical fertilizers together with organic material under lower soil fertility.

通过对北京褐潮土土壤肥力和肥料效益监测基地10年定位微区试验的调查分析表明：在土壤肥力水平较低的情况下施用氮、磷、钾化肥及氮磷钾化肥与有机物料配施，具有显著提高粮食产量的作用，并较大幅度提高土壤有机质含量；随着有机物料施用量的增加，效果更为明显。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。