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Echinochloa crusgalli is one of main chemical control weeds in paddy fields. It is one of the key factors of rice stability yield to control effectively barnyard grass.

稗草是直播稻田及水稻轻型栽培的主要杂草，控制好稻田稗草是直播田稳产的关键因子之一。

A subsequent water-based clean is very effective in removing yield-reducing defects on the barrier layer due to the conversion of the surface of the barrier layer.

一后来的以水为基础的干净非常有效在除去在障碍上的减少生产量的缺点方面由于障碍的表面转变层分层堆积。

The match of the acidity and basicity is very important to obtain good reactivity and high yield in the bifunctional organocatalyst system.

在双功能催化的Aldol反应中，要获得高的反应活性和好的收率，催化剂的酸性基团和碱性基团的酸碱强弱匹配非常重要。

The bulbs of the Lycoris radiatat were pretreated with comminution, ultrasonic and basification methods. The effect of the pretreatment was studied, via observing microscopic character of the cell wall fragmentation of Lycoris radiatat and the yield of galanthamine with SC-CO2 extraction.

采用粉碎、超声波和碱化预处理方法处理石蒜鳞茎原料，通过对原料细胞壁的破碎状况的显微特征观察，以及SC-CO2提取加兰他敏提取率的变化考察了预处理的效果。

"All parts of the tree yield products of economic value, being used variously for timber, furniture, basketry, fuel, rope , and packing material."

全株都有经济价值，可用作木材、家具、燃料、绳索和包装材料。

Some fields have reserves of more than 5.5 inches (14 centimeters) above normal, which may prevent yield losses from dry weather this summer, said Dan Basse, president of AgResource Co.

一些地区储备已超过正常水平5.5英寸（14厘米）以上，这可能防止今夏干旱天气的产量损失，芝加哥AgResource Co。

Large genus of tropical American trees that yield a bast fiber used for cordage and bark used in tanning; milky juice yields caoutchouc.

树的内皮用来做绳索和树皮用来制革的在热带美国的大的属；产出生橡胶的奶汁液。

According to the analysis of principle components,the breeding materials with higher plant height, mediate stem perimeter, thickerbast fiber, higher rate of bast fiber to stalk, should be selected to resolvethe conflict between quality and yield in kenaf breeding.

根据主成分分析结果，在品种选育时，应注意选择植株较高、茎粗中等、韧皮较厚、皮骨比较高和高出麻率和品质优良的材料，以协调品质与产量的矛盾。

When investors are in the treasury secondary market, they have to undertake two kinds of risks: the first one is yield risk, that is, return of investment is lower than inflation rate. This risk can be depicted as the deviation between the ROI and the inflation rate. Secondly, fluctuation risk in the treasury secondary market, that is, the uncertain fluctuation risk may be bullish or bearish in the treasury market.This risk can be depicted as the square deviation of the treasury price in the secondary market.

在国债现货二级市场上的投资者，要承担的风险主要有两种：第一种风险是收益率风险，也就是投资收益率可能低于通货膨胀率的风险，这种风险可以用与通货膨胀率相比较的差值的大小来描述；第二种风险是二级市场价格波动性风险，也就是市场价格上、下波动的不确定性风险，这种风险可以用二级市场价格的标准差来描述。

The protease secreted from cellcould be more stable by adding the Ca2+ to fermentation broth. The cold-adapted protease, stable at 15℃, could be secreted in large quantity by the strainof SYP-A3-2. When the culture temperature was changed from 15℃ to 20℃, the strain grewfaster while the enzyme yield was decreased.

SYP-A3-2菌株在15℃下能大量分泌低温蛋白酶，且能有效保持酶的稳定性，在20℃时能以较快速率生长，但是酶量很少且酶活力不高，可以设计温度控制方案进行分阶段培养以缩短发酵周期。

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。