降下

The results show that glass ceramics with thermal expansion coefficient of 5.11×10^(-6)℃, major phase of α-cordierite and ε=5.5, tan σ=2.1×10^(-4) can be prepared by the addition of 3.6% alkalis (Li2O+Na2O), and Li2O occupies 1.8%. With Li2O substitution for Na2O, spontaneous crystallization is obviously enhanced, and temperature of the first crystallization peak decreases from 950℃ to nearly 900℃, but the crystallization temperature of the second peak was not varied. With the increase of Li2O content, mixed alkali effect can be observed from the thermal expansion coefficient and dielectric loss curve which decreases first and then increases. Dielectric constant decreases monotonously with the increase of Li2O content.

研究结果表明：Li2O和Na2O总含量为3.6%，其中Li2O含量为1.8%时，微晶玻璃以α-堇青石为主晶相，热膨胀系数为5.11×10^(-6)℃，微波频率下介电常数ε为5.5，介电损耗tanσ为2.1×10^(-4)；随着Li对Na的取代，玻璃的析晶能力增强，初始析晶峰温度从950℃降至900℃左右，但没有降低第二析晶峰温度；随着Li2O含量增加，热膨胀系数及介电损耗都出现明显的混合碱效应，曲线呈现先降低后升高的变化趋势；样品的介电常数随Li2O含量增加单调降低。

The results show that glass ceramics with thermal expansion coefficient of 5.11×106 ℃, major phase of α-cordierite and εr=5.5, tan σ=2.1×104 can be prepared by the addition of 3.6% alkalis(Li2O+Na2O), and Li2O occupies 1.8%. With Li2O substitution for Na2O, spontaneous crystallization is obviously enhanced, and temperature of the first crystallization peak decreases from 950 ℃ to nearly 900 ℃, but the crystallization temperature of the second peak was not varied. With the increase of Li2O content, mixed alkali effect can be observed from the thermal expansion coefficient and dielectric loss curve which decreases first and then increases. Dielectric constant decreases monotonously with the increase of Li2O content.

研究结果表明：Li2O和Na2O总含量为3.6%，其中Li2O含量为1.8%时，微晶玻璃以α-堇青石为主晶相，热膨胀系数为5.11×106 ℃，微波频率下介电常数ε r为5.5，介电损耗tan σ为2.1×104；随着Li+对Na+的取代，玻璃的析晶能力增强，初始析晶峰温度从950 ℃降至900 ℃左右，但没有降低第二析晶峰温度；随着Li2O含量增加，热膨胀系数及介电损耗都出现明显的混合碱效应，曲线呈现先降低后升高的变化趋势；样品的介电常数随Li2O含量增加单调降低。

Since ventilation and evaporative cooling are the primary means for temperature adjustment in the duck house, a relationship for the traveling distance of water particles under various thermal environment was first established. This allows for the evaluation of efficiency of foggers for evaporative cooling. The relationship was then incorporated into a mathematical model based on the energy and mass conservation principle to simulate the transient change of outdoor temperature and humidity.

由於通风与喷雾降温为调节半开放式鸭舍内温度的主要方法，首先我们推导出雾粒在完全蒸发前移动距离与热环境条件的方程式，以计算於不同热环境条件下，不同大小雾粒的蒸发比率，从而评估喷雾降温的效率；次而利用质能平衡原理建立鸭舍内喷雾降温热环境模式，以计算及预测鸭舍内受外界热环境影响而产生的温湿度变化。

The structure of an improved pin gate ,called twin-gate,was described,and the rheological behavior of polymer melt passing through the gate was studied.

介绍了一种改进的点浇口———孪浇口的结构，讨论了聚合物熔体流经该浇口时的流变性能，在浇口的长度、总截面积以及流量一致的条件下，与常用点浇口相比，孪浇口使熔体温度升高和使熔体粘度降低的程度要大，但压力降增加的幅度也大。

The residual oil content of de-oil grapeseed meal reached 2% after 6No solvent extracting and under conditions, seed-solvent ratio of 1:1, extraction temperature 50℃ and extraction time 120 minutes.

葡萄籽经破碎、蒸炒后用6号溶剂油在溶剂比1：1、浸出温度50℃、逆流浸泡120分钟的条件下，可使粕中残油率降至2％。

The oddity is that they have not so far, at a time when companies have been eager hirers: unemployment has fallen to just 4%.

而令人费解的是，在日本企业用人需求激增、失业率降至仅为4%的情况下，目前为止日本一直未能迎来消费复苏。

Combining material strength theory and using 3D finite elements model, detailed analysis of loading, thermal, coupled stress condition in joint area of overlay is given effected by stress-absorbing interlays parameters of thickness, modulus, with in-place pavement sensors, it was generalized max temperature changes.

首先，运用材料强度理论，通过三维有限元方法分析了荷载及温度作用下接缝区应力吸收层沥青加铺结构层内应力随吸收层厚度、模量参数的变化规律，此外，通过对现场温度场的测定，确定了湖北地区路面结构的最大降温差。

By the treatment of PMA /Ionophore or crosslinking CD16 molecules, Fas ligand molecules were induced, Fas molecules were with same expressive pattern but the expressive amounts of LTb and LTbR molecules were significantly reduced to 30-50% of the original ones.

之后在PMA/ Ionophore或抗CD16抗体的刺激下， Fas ligand被表达出来， Fas的表现量不变，而LTb和LTbR的表达却降为原本的30-50%。

If local government can control the urban constructing land, then per capita constructing land has the sole equilibrium value under the Tiebout's condition. And urbanization's level has obviously positive relationship with per capita land resource in the whole urban area . And per capita constructing land has negative relationship with urbanization's level, but positive with per capita non-agricultural productivity, and with the per capita land resource increasing, the city size will be appearing the U-shape's change.

二是若政府对城市人均建设用地规模进行控制，则在Tiebout条件下，城市化水平与人均土地指标禀赋呈正相关性，且人均建设用地规模存在唯一的均衡值；人均建设用地规模与城市化率之间呈负相关性，而与人均非农产值之间却存在显著的正相关性，且随着人均建设用地规模的增加，城市规模会出现先降后升的&U型&变化趋势。

For an instant your chest will be so far back that it might hit the seat, immediately start pulling yourself back to more normal stance as you land, another strategy for dropping off the ledge is with speed.As you hip a lip lift the front wheel, you need to be off the brakes as you come off the leap and have enough momentum to land rear wheel first.

另一种下陡降坡的技巧是用速度，当你遇到断层时抬前轮，一过那个断层时放开煞车然后有足够空间让你后轮先著地，找个平滑的著地点很重要而且要有足够空间来煞车避开障碍物。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。