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The influence of strength level and surface strengthening of 5CrNiMo steel on the impact fatigue property in the range of hardness required by hot drop-forging die steel is investigated.

研究了5CrNiMo钢在热锻模要求的硬度范围内，材料强度水平和表面强化对冲击疲劳性能的影响。

A new design scheme, with the sample current circuit by the use of MAX471 and regulate component of P type MOSFET, is presented in this paper. With the use of MAX471 and ultra low on-resistance components P-MOSFET, the new power circuit results in a very low drop-out voltage, and conversion efficiency is very high, presenting a very good application future.

改进了某井下物探仪器的电源电路，采用MAX471进行电流取样，可以显著降低电流取样引起的压降，用P型大功率MOSFET替代原电路中的限流管和电源电压调整管，设计成功一种新型超低压差限流稳压电路，提高了电源效率，取得了很好的实际应用效果。

Belcher chain is composed of a black, drop-shaped zirconia surrounded by

这款光彩夺目的925纯银颈链，配以搪瓷及黑色锆石吊坠，闪闪生辉，助您展现动人美态。

Rain in the drought-stricken areas will be accompanied by a drop in temperature of between 4 and 6 degrees centigrade, which will "affect a recovery in wheat growth," the report said.

报告称，受旱地区在迎来降雨同时，气温将下降4至6℃。降温会对麦苗恢复生长产生影响。

The heating media is steam, hot water or conduct oil. The heating media is fed from one side of the drying tray and come out from the other side. The dried materials drop down to the bottom layer from the last drying layer and then it will be conveyed to the discharging gate by the harrow.

中空的干燥盘内通入加热介质，加热介质形式有饱和蒸气、热水和导热油，加热介质由干燥盘的一端进入，从另一端导出，已干物料从最后一层干燥盘落到壳体的底层，最后被耙叶移送到出料口排出。

The objectives of this two-year proposal are to study the above-mentioned problems by combining children fall accident reconstruction with drop experiment of child dummy.

本计画延续此刻进行之坠落事故电脑模拟研究，并以坠落案例资料为基础，以两年时间设计、制作儿童人偶模型，进行人偶模型之坠落实验，探讨儿童坠落事故中头部伤害问题。

To prevent boron deficiency caused by a variety of physiological diseases, such as "flowers instead of real,""not real fruit","fruit and obscene" and "Leiling off","fruit drop Jujubovora","fruit deformity""shriveled pod empty shell ear," and so on.

预防因缺硼引起的各种生理性病害，如&花而不实&、&实而不果&、&果而不良&、&蕾铃脱落&、&落果缩果&、&果实畸形&、&瘪荚空壳空穗&等现象。

The correlations of heat transfer and pressure-drop in both refrigerant side and airside are elected. The computational units are divided along the evaporation process and the computation code is developed. The program is verified by the experiment results. 5 Six kinds of evaporators with different numbers of flow and passages arrangement were simulated.

建立了层叠式蒸发器的1维数值仿真模型，选取了制冷剂侧和空气侧的传热和阻力性能关系式，按蒸发器流程进行了单元体的划分并编制了计算程序，对2种层叠式蒸发器进行计算并与实验结果进行比较，验证了程序的可行性。

Round and pear-shaped purple amethysts are separated by a slender hinged gold bar in this elegant drop necklace.

圆形和梨形紫水晶，紫色是隔著一个细长的铰链金条在这优雅的下降项鍊。

Singapore's GDP fell by an annualised 12.5% in the fourth quarter of 2008, its biggest drop on record.

新加坡的同比下降了12.5%在08年的第四季度，这是史上最大的降幅。

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。