查询词典 pre-requisite

You can custom-build a COSMOSM system that meets your specific analysis needs, or select one of our popular pre-packaged bundles.

COSMOSM可对大规模的、物理和几何条件相当复杂的问题进行分析、验证和优化。

Head pre May 20 to $10/cwt.($120/head) by the end of summer.

然后，上升为$20/cwt($140/头)。

Moreover, the pre-treatment and post-treatment processes for the steel sheet subject to continuous zinc plating were also discussed. Results showed that the alkaline zincate plating process had many advantages over conventional alkaline cyanide zinc plating process, including high current efficiency, good throwing power, and strung adhesion strength of the coating.

结果表明，该工艺电流效率高（锌离子含量16~24g/L时，电流效率可提高约20%，镀液均镀能力好（宽度为1m的镀锌薄板，中心点厚度与边缘厚度差不大于10%，镀层结合力优良（将试片180°任意弯曲，镀层无起皮、剥落现象；在烘箱中加热至180-200℃，保温60min，冷水中急剧冷却，镀层无突起、鼓泡、剥落现象），所镀得的镀锌薄钢板适合于钝化和彩涂等后处理。

On any pre-printed clothing, the inventory cycle is a very important factor, it means you have to sell at a specified time out printed all clothing for the production of products in the future store.

对任何一款预印服装来说，库存周期都是一个非常重要的因素，它意味着你必须要在特定时间内卖出印好的所有服装，以便为以后生产的产品提供储存空间。

The cyclic symmetry algorithm can greatly save the computer memory and the CPU time without inducing any additional approximation. At last, the programs including pre-processing, calculation and post-processing are developed based on the models and methods mentioned above.

最后，在以上理论分析的基础上，本文编制了适用于循环对称结构的静应力与振动特性分析程序，以及适用于该程序的前后处理接口程序，并进行了算例验证，证明由循环对称算法得到的结果与整体算法、实验得到的结果完好吻合。

Moreover, they are not suitable for gears manufactured by different cutting tools. Based on gear generation principle, a new method to establish accurate 3D solid model of cylindrical gear by mechanism function of Pro/E is proposed. Taking the manufacture of spur-gear with pre-grinding hob as an example, this method is introduced in details and the accurate 3D solid model is set up.

以范成法加工齿轮的原理为理论基础，介绍在Pro/E平台下利用其机构模块的"轨迹曲线"功能精确构建各种刀具加工出来的渐开线圆柱齿轮齿廓曲线的方法，并以磨前滚刀加工直齿圆柱齿轮为例，详细介绍该方法的使用步骤，构建其精确的三维实体模型。

The results indicated, that the curves of hatching rate and normal diploid larva output showed a single peak, with the highest point at 3.4 τ0, corresponding to metaphase of the first mitotic division, the results were obtained irrespective of the different pre-treatment water temperatures, thus confirming the veracity of measuring heat-shock timing by τ0 and the wild applicability of this method in cyprinid and also suggesting a new way to the operations of induced gynogenesis in related fish.

结果提示了以τ0单位度量热休克处理时机的准确性以及该优化方法在鲤科鱼类雌核诱导操作中的通用性，从而为相关鱼类的雌核发育操作提供了有价值的资料。

In the pre-Revolutionary era, the dandified British macaronis scoffed at the colonialists, and called them Yankee Doodles.

就管这般又贫又脏的殖民老百姓叫' Yankee Doodles' (意指他们是土包子或乡巴佬)。

It is important and necessary to understand the structure and characteristics of the system, and to identify the dangerousness of the system so as to provide pre-term preparation for safety evaluation.

弄清系统的结构和特征，辨识系统的危险性，从而为安全性评价工作做了前期准备。

Darin Erstad's mystical anti-injury pouch, Patrick Roy's conversations with the pucks, Jason Terry's game-shorts-as-pajamas bedtime habit, Pelle Lindbergh's ubiquitous orange t-shirt, Caron Butler's pre-game Mountain Dew bath...the general rule is this: If you're winning, don't change anything .

达林·厄斯特德的抗受伤口袋，帕特里克·罗伊与小妖精的谈话，贾森·特里把球衣当睡衣穿的习惯，佩莱·林德伯格无处不在的橘红色的T恤，卡隆·巴特勒赛前用山上的露水洗澡……原则就是：如果你要赢得比赛，就不要改变任何东西。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。