蚀刻

Keywords: simulation of water wave;physical model;refraction;water caustics

光影特效。本文在基于物理模型模拟进行水波造型的基础上，大胆结合了光影特效，对光照模型、水波折射现象及水波刻蚀现象分别进行了研究与实现，大大增强了水波模拟的真实性。

G. titanium alloy has a low cost and environmental impact compared with photochemical machining using toxic etchants based on hydrofluoric acid.

采用光刻电解技术，可以选用对环境污染影响小、成本较低的腐蚀液，实现难蚀除金属材料的微细阵列结构加工，优于化学腐蚀方法。

Concentrated, buffered, and dilute hydrofluoric acid were utilized as etchants for SiO2 and SiNx:H. A high etching selectivity of SiO2 over SiNx:H was obtained using highly concentrated buffered HF.

浓氢氟酸、缓冲氢氟酸和稀释氢氟酸被用作氧化硅和氮化硅的刻蚀液，使用高浓度的缓冲氢氟酸可以获得较高的选择比。

There are various major ground pipeline equipment: speed chain conveyors, isokinetic chain conveyors, roller conveyors, roller conveyors, roller conveyors, conveyor belts, automatic shift contained equipment: set-shifting, and overturned aircraft, positioning, automatic equipment from top to bottom material, Lift, hoist continuous, three-dimensional warehouse; Punch automatic feeding equipment: Multi-Position transferred manipulator, servo Tape feeder, flip, etc.; cleaning equipment: spray-cleaning machines, ultrasonic cleaning, etc.; various process of automation equipment : Characteristics of machines, etching production lines, the magnetic field simulation devices, high-pressure machine, scissors machines, drying equipment, hydraulic systems.

主要有各种地面流水线设备：倍速链传送带、等速链传送带、辊子传送带、滚筒传送带、滚轮传送带、皮带输送机；自动移载设备：移载机、翻转机、定位机、自动上下料设备、升降机、连续式提升机、立体仓库等；冲床自动送料设备：多工位移送机械手、伺服送料机、翻转机等；清洗设备：喷淋式清洗机、超声波清洗机等；各种工艺性自动化设备：特性试验机、刻蚀生产线、模拟磁场装置、高压机、剪刀机、干燥设备、液压系统等。

248Nm zero-order nulled chirped silica phase masks are fabricated by insertion a cylindrical lens to 325nm He-Cd laser holographic system to form the chirped grating patterns on photoresist and then transfer the patterns to silica substrates by reactive ion etching.

采用在325nm He-Cd激光双光路全息干涉系统的一臂上插入柱面镜的方法和反应离子刻蚀技术研制了周期渐变的零级抑制石英相位掩模版，并用该掩模版在B/Ge双掺光纤上研制出中心波长1551nm，带宽11.4nm，反射率约60％的宽带Chirp光纤光栅。

With SEM the sample film face to quarter corrode around had observation.

用SEM对刻蚀前后的试样膜面进行了观测。

The device is designed with the principle of wire grid polarizer and subwavelength grating structure, and etched with semiconductor technique.

该器件基于线栅偏振器和亚波长光栅结构原理设计，利用半导体工艺的刻蚀技术制作。

In order to solve the difficulties in producing and welding tiny bridge-belt ,twn methods- producing by electrochemical etching and laser welding with powder cladding were put forward.

针对微型桥带的成型与焊接工艺难题，提出了采用电化学刻蚀成型和利用粉末熔覆工艺进行激光焊接的工艺方法，并给出了具体的工艺过程，成功地实现了低成本、高质量、成批量的工业生产要求。

Laser trimming machine is an application of the laser trimming technique in electronic processing industry. It is a high technique equipment that utilizes interdisciplinary technologies such as optics, fine mechanics, computer control and fine measurement.

激光调阻机是激光刻蚀技术在电子加工工业中的一种应用，是集光学、精密机械、计算机控制和精密测量技术于一体的高技术的加工设备，主要用于厚薄膜电阻的微调加工。

Base on the magnetic performance of gas, the moment of rotation of a dumbbell is derived when it is in a nonuniform magnetic field. A design of the measuring cell is proposed, a rotary resistance for the dumbbell ball is implemented by a silver-coated erosion approach, and the techinque requirements are analyzed for the nonuniform gradient magnetic field.

从气体磁性推导出了哑铃球在非均匀梯度磁场中受到的转动力矩公式，给出测量池系统的设计方案，采用镀银刻蚀方案实现哑铃球系统的转动阻尼，分析了非均匀梯度磁场系统的技术要求。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。