查询词典 mechanical

Propose novel experimental techniques to estimate quickly the longitudinal mechanical properties of tracheids, and then to explore the in-tree variation of longitudinal mechanical properties of tracheids of Chinese-Fir from plantation.

研究管胞力学性质的主要影响因素及其株内变异规律不仅有利于实现木材纤维／塑料复合材料和纸浆造纸领域对纤维的选择性利用、还可以为木材性质的基因改良提供量化的目标和指标。

Texas, by mechanical Technology Co., Ltd. view of the current domestic and international oil production structure and the status quo, patent inventors developed after more than 10 years, and the Chinese Academy of Sciences and Qinghua University mechanical experts improve and perfect, solemnly introduced the "oil-burning device" series.

德州华科机械科技有限公司针对目前国内外油井结构及生产现状，专利发明人历经十余年研制开发，并经中国科学院和清华大学机械专家改进完善，郑重推出&油井清蜡器&系列产品。

Results showed that there were no evident effects of different mechanical processes on the organic acid content(P＞0.05). The pH value of silages was all lower than 4.0 and the ratio of ammonia nitrogen to total nitrogen was all lower than 5.0, which improved the quality that all the silages in experiment were good. Though the effects of three different mechanical processes on the CP, CA and WSC contents of silages were evident, the silages were all excellent.

经不同切碎方式的各组青贮饲料的有机酸含量均无显著差异(P＞0.05)，pH值均在4.0以下，而且氨态氮与总氮的质量比也均在5.0以下，达到了优质青贮饲料的标准，虽然各青贮饲料的粗蛋白、粗灰分和可溶性碳水化合物含量有显著差异(P＜0.05)，但均为优质的青贮饲料。

On the contrary, a kind of coarser structures and some metallurgical drawbacks, such as micro-holes and shrinkages, will appear in the mould-cast alloy thus mechanical properties of the latter is poorer than that of the former.2 When in different part or the casting thickness not equal, the die-casting magnesium alloy AZ91D has different mechanical property.

压铸镁合金AZ91D的组织由均匀细小的近球状组织和细小的放射状枝晶组成，相比较而言，砂型铸件组织粗大，易产生气孔、收缩等缺陷，故而其力学性能比压铸件要差。 2。压铸镁合金AZ91D铸件依部位和厚度不同，力学性能也不同。

It absorbed the merits of different mechanical structures, applied the mechanic principles of folk waterwheel, barrel car, as well as shaduf, cam, and balance weigh beam, and thus was an automatic observatory, which had the multi function of observation, demonstration and time giving, and it gained or lost no more than one second per day. It was the ancestor of the mechanical clocks, since

它吸取各家机械结构之长，采用民间水车、筒车，以及桔槔、凸轮、天平秤杆等机械原理，是集观测、演示和报时为一体的自动化天文台，精确度已达到误差每日一秒，更因为采用了早期的擒纵机构，成为机械钟的祖先。

Aiming at disjunction of microcosmic researches and macroscopical researches and status quo of theory basis researches of Aeolian sand movement near the sand bed, based on plenty of experiment data in wind tunnel, this thesis studies some microcosmic researches including the number of lift-off sand grains percent time percent sand bed area and relative movement parameters of saltating sand grains by combined methods of mechanical and statistical mechanical theories. Then, this thesis develops in advance a relation between the microcosmic researches and macroscopical researches in order to describe truly the theory model of some macroscopical physical variable of Aeolian sand movement.

本文针对当前风沙运动微观与宏观研究相脱节、准确描述近地面风沙运动规律的理论基础薄弱的现状，基于大量风洞实验数据，通过对沙床面单位时间单位面积起跳沙粒数、沙粒跃移运动过程中相关参数等微观问题的研究，力图建立风沙运动微观与宏观研究的联系桥梁，以期能够准确描述风沙运动宏观量变化的理论模型。

Mechanical Accuracy: Testing the mechanical accuracy involves rechecking a sample of the computations and transfers of information from one document to the next.

机械准确率：检测机械准确率包括审核样本的计算结果是否正确及信息各文档中的传递是否正确。

Mechanical Accuracy: Testing the mechanical accuracy involves rechecking a sample of the computations and transfers of information from one document to the next.

机械准确率：检测机械准确率包括审核样本的计算结果是否正确及信息各文件中的传递是否正确。

Some new processes and technologies for electronics finishing were introduced, such as wafer plating, electrochemical mechanical polishing, microelectro-mechanical system plating, copper plating using insoluble anode, platinized niobium electrode, lead and cadmium free eleclroless nickel, recycling of alkaline etching solution and reclaiming system of copper.

介绍了电子电镀中的若干新工艺新技术，如芯片电镀、电化学机械研磨、微机电系统电镀、不溶性阳极电镀铜、镀铂铌电极以及无铅无镉中磷光亮化学镀镍、碱性蚀刻液再生和铜回收系统等。

Provincial Machinery Research Institute with the Chinese laborers building large retired mechanical engineer, exert power and mechanical engineering expertise, combined with the Hong Kong Construction Equipment Engineer advantages, the common design and quality supervision.

省建筑机械研究所与华工大退休机械工程师，发挥工程动力与机械方面的专长，结合香港建筑设备工程师的优势，共同设计及质量监督。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。