查询词典 etching ground

Besides, thinking to the packaging problems, Nesic presented technology without etching on the ground.

此外考虑到封装的问题，Nesic等人提出不需要衬底或地板蚀刻技术。

In this paper, a new one dimentional microstrip PBG filter with triangular variation of the characteristic impendence without etching in the ground plane is reported.

本文给出了一种新的一维微带光子带隙滤波器结构，该滤波器的阻抗按照三角规律变化，克服了通常微带光子带隙滤波器需要在衬底上打洞或接地面腐蚀获得周期结构的缺点。

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。

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。