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Degradation of chitosan by sodium nitrite is a fast and molecular weight-controllable method for preparation of low molecular weight chitosan.

用亚硝酸钠降解壳聚糖是一种制备低分子量壳聚糖的快速且分子量可控的方法。

To improve the robust characteristic s , the paper makes use of nonlinear constraint method is used to optimize the weight vector of adaptive pattern. The final solution of weight vector is different from alterable diagonal loading and the unknown parameter in optimum optimal solution can be obtained easily and accurately.

为了提高算法的稳健性，本文采用非线性约束方法对进行优化，的优化解在形式上不同于可变对角加载类算法，且优化解中的待定参数容易准确求出。

Diabetic diets and weight loss and weight management diets may benefit from the use of Asian black soya bean.

糖尿病饮食和体重下降和体重管理饵料可受惠于利用亚洲黑大豆。

You may tell the specific gravity of a certain object by knowing its weight in air and its weight in water.

只要知道某一物体在空气中的重量和在水中的重，你就能说出其重量。

The test areaswas 480.24 m2.The results were as follows:the excessive amount of organicfertilizer or urea was the cause of plant spindling and falling over. Application ofdifferent fertilizers for organic fertilizer≤15 000 kg/hm2,urea≤150 kg/hm2,KCl≤225kg/hm2,fused calcium magneium phosphate≤450 kg/hm2,have theapparent effects on increasing the individual plant productivity,the weight of one hundredgranule and the weight of one hundred kernel.Organic fertilizer and urea showed moreapparently effects.

结果表明，有机肥或尿素的过量使用是植株徒长倒伏的主要因子；增施：有机肥≤15000 kg/hm2，尿素≤150 kg/hm2，KCl≤225 kg/hm2，钙镁磷肥≤450kg/hm2，都能明显提高花生的单株生产力、百果重和百仁重，其中有机肥和尿素的效果极明显。

Such as: Experiments in place a weight on the block with a spring balance Rafah wood uniform linear motion, the weight is due to the static friction of wood it only with pieces of wood from a static into movement.

在实验中发生的重量对座一个弹簧秤拉法木材匀速直线运动，体重，是由于静摩擦力的木材，它不仅与块材，从静态到流动。

Calibration of the spring tension: vertically aligned with the weight, in a trap to 1000 grams of tension, including clip itself weight, and then adjust the tension of the spring clips, clip as a result of a stretched distance is equal to 5 mm, which is the clip of the first line.

弹簧张力的校准：用砝码垂直校准时，在一夹子上加以1000克的张力，然后调节夹子的弹簧张力，夹子拉伸的距离因个等于5毫米，即夹子的第一条刻线。

The first is not the same as the weight, followed due to different shape, if the words to use squash squash rackets tennis beat easily broken, however, unnecessary losses, If playing squash with the tennis racket, you will find it hard because the tennis racket squash are weight rackets too much.

首先是重量不一样，其次就是造型不一样，倘若要用壁球拍打网球的话壁球拍就很容易折断，然而造成不必要的损失，若用网球拍打壁球的话，你会感到吃力，因为网球拍比壁球拍重太多了。

Experimental results indicate that there is a critical value of carbon fiber weight fraction which effects the electrical properties of SCF/NBR.When carbon fiber weight fraction comes to this critical value,volume specific electrical resistance and static ...

通过实验发现，碳纤维的含量对短碳纤维／丁腈橡胶（ShortCarbonFiber／NitrileButadieneRubber）电性能的影响，存在一个临界值，当碳纤维的含量达到此临界值时，SCF／NBR的体积比电阻和静电电压都得到显著的降低。

Reducing weight in the roof and upper parts of the body lowers the center of gravity, while weight reduction in the doors, engine hood, trunk and other peripheral elements reduces the moment of inertia for better steerability.

减少在屋顶和身体上部的重量降低了重心，而在门的重量，发动机罩，行李箱和其他外围因素的减少降低了更好的转向性的转动惯量。

The X-ray diffract was used to analyze the crystal structure of the composite. Results show that after the talc was treated with blend coupling agent, the crystal structure of talc changed, and effect Intercalation phenomenon.

通过X射线衍射分析可知，用混合偶联剂对滑石粉进行预处理后，滑石粉晶体结构发生改变，产生了插层现象，使PP／滑石粉复合材料为纳米复合材料。

An authentic Maui wedding might require the services of a 'kahu', which is a Hawaiian minister.

毛伊可能需要一个真实婚礼服务'kahu'，这是夏威夷部长。