作业

In this experiment, working efficiency and mental fatigue degree were quantitatively measured, analyzed and evaluated through charactering the gross of letters crossed out and reading accuracy as objective indexes for appraising reading environment.

实验将一定时间内被试者在一定阅读环境内阅读作业中工作量和阅读作业准确率作为评价阅读者疲劳程度和阅读环境优劣的客观指标。

On the base of above, SWPU united by the Baoji Petroleum Mining Machinery Corporation launched the research of "Study on the wire rope enwinding system of the roller in the ZJ70D drill rig". After this study, they want to make out the improving proposal for the wire rope enwinding system in that rig, so as to make that kind of equipment been used to deep and ultra-deep drilling operation.

基于此，西南石油大学与宝鸡石油机械有限公司合作开展&ZJ70D钻机绞车滚筒缠绳系统力学建模与分析&项目研究，旨在根据深井、超深井作业实际，提出目前钻机滚筒钢丝绳缠绕系统结构改进方案，以求解决目前普遍存在的深井、超深井作业中钢丝绳缠绕乱绳、夹绳事故。

Article 2 The present Provisions shall apply to such operations as loading and unloading, lightering, storing and packing, and vanning and devanning containers of, dangerous goods at port (hereinafter referred to as "port operation of dangerous goods").

第二条 在港口装卸、过驳、储存、包装危险货物或者对危险货物集装箱进行装拆箱等项作业（以下简称&危险货物港口作业&）适用本规定。

The thesis analyzed limbing,bucking and cutting operation by using chain saw type G621AVS.The results show that difference of the EMG activities among trunk muscles were distinct(p＜0.01),while Oblique external abdominis amplitudes(p＜0.05).These facts indicated that different forestry work postures were the primary influence on EMG activities among trunk muscles.

在对使用矮把油锯打枝、造材和伐木动作进行分析发现，油锯作业时不同姿态下除左右腹外斜肌肌肉活动差异显著性水平在p＜0.05，其余各肌肉活动差异都存在显著性差异p＜0.01，说明不同的作业姿势对躯干各肌肉活动的影响存在显著性差异。

To this thesis, the current situation of logistics cost control and logistics system of manufacturing enterprises are analyzed. Based on this analysis, the method of objective logistics cost control based on ABC system is lucubrated in and some relevant measures are summed up.

据此，本文在剖析制造企业物流成本控制的现状及其存在问题的基础之上，通过对制造企业物流系统的分析，深入研究了基于作业的物流成本目标控制的方法，并总结了制造企业实施基于作业的物流成本目标控制方法应采取的相应措施。

This phase is operating, almost every class the teacher is the most headache operation "careless."

这阶段正在作业，几乎每一个班级老师最头疼的是作业&粗心&。

On the railway line nuder normal major repair cycle , RM-80 full section undercutting ballast cleaning machine has enough excavation ability in working condition , productivity can come up with its design standard .

对于正常大修周期的线路上，RM80型全断面道碴清筛机作业运行工况具有足够的挖掘能力，作业效率基本上能够达到其设计标准，这些在国外已经得到了充分的证明。

In this paper, we give an algorithm for predicating the execution time of various jobs under various load environments. Based on this predication, the overhead and benefit of transferring a job can be calculated.

另外，本文还讨论了不同的负载环境对于不同类型作业响应时间的影响，并以此为依据来估计作业转移的收益与开销，将一个基于收益与开销的新的选择策略应用到负载平衡算法中。

Firstly this paper explores the main systerm modeling methods in hydraulic grab;then we focus the analysis on the kinematics and bear of the back shovel dig device, the request of the gig ability, the task efficiency , the endure intension; after that we creat a rational maths model and write a program to ananlysis the data acquired; finally, this paper gets the optimize parameter and scheme, and protracts the grab envelope chart.

论文首先对液压挖掘机主要系统建模方式进行探索，然后重点对反铲挖掘装置运动学及受力进行分析，分析反铲挖掘装置的挖掘能力要求、作业性能要求、作业效率要求、受力状态要求，进行运动学和动力学分析，创建合理的数学模型(设计变量、目标函数的确定)，利用合适的优化方法编写计算机程序，调试通过程序应用，最后对优化结果进行分析整理。

His teacher reproached him for not doing his homework.

老师 责备他不做作业。责备他不做作业。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。