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Variable structure control of discrete-time systems and its applications in shot-concrete robot are discussed in this paper.

本文探讨了离散系统的变结构控制理论及其在喷浆机器人中的应用。

Shaanxi-Ru 100 million construction and installation Decoration Engineering Co., Ltd. is engaged in building mechanical and electrical equipment installation, indoor and outdoor decoration, landscaping, fountain sculpture, construction steel, petroleum pipelines, corrosion insulation waterproofing, water and electricity HVAC, building curtain wall, intelligent engineering , communications equipment installation works, fire road traffic facilities and road roadbed, bridges and sports facilities, engineering design, construction, installation, construction decoration project budget and final accounts and audit preparation and audit consulting services, advertising, production and dissemination; Xi'an Highway Transportation Facilities Reflective signs of construction engineering, Xi'an, Xi'an, speed hump, protective Misnomer, Xian-chu, anti-collision warning, various traffic cone, wide-angle convex mirror, reflective vest, construction clothing, crash the water horse, contour standard, reflective spike , Anti-glare panels, bull barrel, triangle warning planes, the warning line, barrier tape, high-brightness lattice reflective film, parking locks, retaining wall protector, traffic Plum lights, traffic baton, reflective materials, hot melt crossed the road machine, Xi'an road cold spray liner machine, parking smart Barrier, Barrier intelligent toll station, as well as all levels of roads, community, school construction projects such as crossed.

陕西儒亿建筑安装装饰工程有限公司是从事建筑机电设备安装、室内外装饰装修、园林绿化、喷泉雕塑、建筑钢结构、石油管道、防腐保温防水工程、水电暖通、建筑幕墙、智能化工程、通讯设备安装工程、消防道路交通设施和公路路基路面、桥梁及体育场设施工程的设计、施工、安装，建筑装饰工程预决算与审计编制及审核咨询服务，广告设计制作与发布；西安公路交通设施工程部施工西安反光标志牌，西安橡胶减速带，防护隔离栏，西安防撞警示柱，各种交通锥，广角凸面镜，反光背心，施工服装，防撞水马，轮廓标，反光道钉，防眩板，防撞筒，三角警示架、警戒线、护栏带，高亮度晶格反光膜，车位锁，护墙角保护器，交通梅花灯，交通指挥棒，反光材料，道路热熔划线机，西安道路冷喷划线机，停车场智能道闸，收费站智能道闸，以及各级公路、社区、校园等划线施工工程。

The managing technique of weed control in the utilized first field was established by using Pendimethalin combiningwith shallow intertilling and raining after germinating, artificial control for weeds that still survive and germinate was carried on once or twice, and other perennial weeds and Convolvulus arvensis were sprayed Butoxone along the alfalfa line.

利用一年种子田综合防除措施为：在苜蓿返青后，喷施土壤处理剂施田补，并在一周内浅中耕混土以防治一年生杂草，对仍存活杂草和后期出现的杂草进行人工除草一至二次；在苜蓿后期和收割后，可沿苜蓿行间喷洒2，4-D丁酯，以杀除田旋花及其他阔叶多年生杂草。

Objective: To investigate the effects of Thiopental on δ-band of QPEEG in convulsant rabbits.

目的：观察硫喷妥钠对惊厥家兔脑电图δ频段的影响。

In this paper,the cooling effect by fine mist was firstly studied through numerical simulation.

本文通过数值模拟研究了不同的喷雾量对降温效果的影响规律。

A certain type of nozzle spray cooling effect has been simulated, simulated and measured results agree better.

对某种型号喷嘴的喷淋冷却效果进行了模拟，模拟结果与实测结果吻合得较好。

But gradually I got into the way of the thing, and guided my coracle among the waves, with only now and then a blow upon her bows and a dash of foam in my face.

不过我渐渐掌握了这玩意儿的脾气，驾着它在浪涛间穿行，只有偶尔从船头打进来的浪花会将一股飞沫喷到我的脸上。

Once I shipped a sea so heavy that I had to stop and bale, with my heart fluttering like a bird; but gradually I got into the way of the thing, and guided my coracle among the waves, with only now and then a blow upon her bows and a dash of foam in my face.

有一次一个大浪冲过来使小艇积了许多水，使我不得不停下来，心里焦急得像揣着小兔子似地往外舀水。但我已逐渐习惯了，能够划着小艇在波浪中上下滑行，只是偶尔有点水从船头泼过来，溅起一股飞沫喷在我脸上。

Experiments prove that this stationary fire suppression system has corking effect to put out small and medium fire as 1A,1B and 2B types, and its quantity ofABSTRACTwater requirements is less than ordinary water spray fire suppression system.

通过试验证明：本固定式灭火系统对灭中小型火灾如1A、1B、2B具有很好的效果，且用水量比普通水喷淋灭火系统大为减少。

Spray drying can increase the gelatinization degree to a certain extent and make corn flour possess cold viscosity.

喷雾干燥在一定程度上可增加产品的糊化度，使玉米面粉具有冷粘性。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！