低降

Two examples are given to show that order reduction technique based on modal value analysis method is superior to the common technique which simply selects the modal vecors associated with the lower modal frequencies.

通过两个算例说明本文方法是对通常选择低频模态的降阶方法的改进，提高了低阶模型的精度。

Now, investor grasps close moneybag, only the enterprise of 20% may obtain financing on the market, and appraise value also falls very lowly, do not know trend of prospective economy be issued to lower levels wants to last how long.

现在，投资人都攥紧钱袋，市场上只有20%的企业可能获得融资，而估值也降得很低，不知道未来经济下行趋势要持续多久。

Myocardial ischemic model was made and hypotension in the dogs was induced with ligating left front descending limb coronary artery method, and secondary hypertension by narrowing nephridium artery of rats, Shenfu injection was administered with 5, 10mL·kg-1 to the above dogs and rats separately to investigate the influence of it on the hemodynamic indexes of myocardial ischemic dogs and blood pressure of rats.

结扎犬左冠状动脉前降支造成心肌缺血及低血压；缩窄大鼠腹主动脉造成血管阻力增加而形成继发性高血压；分别给予参附注射液5 ，10mL·kg-1，观察其对犬血流动力学和对动物正常血压或高血压的影响。

The low and normal noise reduction algorithm implemented in the D80 is able to remove excess noise without losing too much detail.

低和正常的降噪算法实施在与D80 ，是能够消除过剩的噪音，没有失去太多细节。

Many former NVA officers were demoted by one or two grades if they were younger than officers of corresponding ranks in the Bundeswehr.

很多前国家人民军军官因为比联邦国防军条令中对等军衔规定的年龄低，都被降了一级或者两级。

Compared to the CT-IGBT, the ACT-IGBT has a lower on-state voltage drop and a larger forward bias safe operating area.

新结构比常规槽栅IGBT具有更低的开态压降和更大的正向安全工作区。

A single-loop 5-order 1-bit quantization structure is chosen along with OSR of 64, first sampling capacitor of 6pF, clock frequency of 128MHz to achieve 16-bit resolution and 1MHz base-bandwidth.

在系统设计方面，选用前馈结构，它有助于实现调制器的稳定和降低第一级积分器的线性设计要求；同时通过系数调整把第一级积分器的摆幅降下来，有利于低电压运放的设计。

The results showed that the heavy metals in various mediums were mainly Cu and Ni, and those concentrations were, in the descending order, in ditch, tailings, slagheap and cultivated soil. In the tailings and the sludge of the ditch, the concentrations of Ni were obviously higher than those of Cu. Whereas, in the soil and the weathering and atmospheric deposition of the waste slagheap surface, the concentrations of Cu were higher than those of Ni. This means that in the first two mediums, Cu and Ni mainly originated from the tailings, while in the latter two mediums, Cu and Ni mainly came from the atmospheric deposition of airborne particles of the smelting. Cr and Zn were mainly in residual fraction, Cu was mainly in oxidizable and residual fraction.

结果表明：不同区域环境中重金属呈现不同程度累积，其中以Cu、Ni最为显著，含量由高到低依次为尾矿坝排污沟＞尾矿坝＞废渣堆＞农田土壤；尾矿砂和沉积物中重金属分布以Ni含量显著高于Cu含量为特征；而农田土壤和风化物及降尘中重金属分布以Cu含量高于Ni含量为特征，前者Cu、Ni主要来源于尾矿，后者与冶炼烟尘排放有很大关系；样品中除Cr、Zn以残渣态为主外，Cu、Ni、Pb化学形态分布有较大差异，Cu以可氧化态和残渣态为主，Ni以可还原态为主，其次为弱酸提取态，Pb以可还原态为主，其次为残渣态。

It is a new production for oil well paraffin inhibition, which discard the disadvantage of the past paraffin inhibition.

该技术是针对原油生产过程中，油井结蜡影响正常生产而研制开发的新一代油井防蜡降凝产品，它摈弃了以往各种清防蜡措施施工繁琐和费用较高的缺点，不仅现场施工简单、费用低，而且在 1个周期内不用任何维护。

If changing the raw materials,only properly changing the technical conditions just can get the per unit yield of paraxylene or the joint yield of ortho-paraxylene.

如改变原料时，只需适当改变工艺条件，即可单产对二甲苯或联产邻对二甲苯。五、临氢降凝催化剂：3881催化剂可用于增产低凝柴油。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。