系统表示层 (Presentation Layer),用来归类「提供操作接口」的相关程序代码。例如:提供Textbox接受用户输入地址数据、透过MessageBox通知用户处理结果、甚至是提供Web API给远程系统使用,这些程序代码都会被归类在表示层之中。 领域逻辑层 (Domain Layer),用来归类「封装系统逻辑」的相关程序代码。例如:商城系统的商品数据、...
回答：MPEG Audio分为MPEG1和MPEG2两大类。而MPEG1中主要有Layer1、Layer2和Layer3三种。MPEG1 Audio编码方式之间的主要区别从外部看来主要是对音频文件的压缩率和要求播放媒体提供数据的速率不同,并且内部采取的算法也有很大的不同,基本上是随Layer数增大而越来越复杂。经Layer1编码的音频文件后缀为MP1,...
即Layer3基于成本和效率而推动。 Layer3带来的价值,包括Vitalik在内的知名人士及项目方都得到认可,即自定义功能、自定义扩展性、自定义安全性。 基于上述优势,随着Layer2生态的蓬勃发展,基于更自由和多样化的市场需求,Layer3的价值应是在Layer2之上驱动的。即Layer3的价值和Layer2的价值呈正相关性,且更具特色。 另...
Switch(config)#int vlan 10 Switch(config-if)#ip address 192.168.1.2 255.255.255.0 Switch(config-if)#int vlan 20 Switch(config-if)#ip address 192.168.2.2 255.255.255.0 Switch(config-if)#ex Switch(config)#int f0/1 Switch(config-if)#switchport access vlan 10 Switch(config)#int f0/2 Switch...
二.二层面料(2layer)?三层面料(3layer)?冲锋衣 的面料一般分最外面的保护层、中间的防水透气层和里料。2.1 二层面料保护 层… www.docin.com|基于64个网页 2. 三层贴合 三层贴合(3 Layer)透气防水功能贴合 (Breathable Layer) PU 或 PVC 贴胶 (Lamination) 仿真皮、仿麂皮 摇粒绒 (Polar Fleece) ...
3-Layer 35kV Tree Wire Spacer Cable Standard ICEA S-121-733, ASTM B231, ASTM B399, ASTM B232 3-Layer 35kV Tree Wire Spacer Cable Construction The tree wire is designed with concentrically stranded conductors - ACSR which are either compressed or compact...
3-layer-namespace Ticket Spark 3.4.0 release notes This works when using the Apache Iceberg example below, but does not work when utilizing multiple Delta catalogs. While the SparkSession is initiated with the catalog present in the session, when a second, nonspark_catalogcatalog is referenced,...
3-Layer Disposable Face Mask Meltblown Cloth Facial Masks, Find Details and Price about Face Mask Disposable Face Mask from 3-Layer Disposable Face Mask Meltblown Cloth Facial Masks - Beihai Kingsky Enterprise Co., Ltd.
Electric 3-layer 3-dish deck bread baking oven Specification: 3-layer 3-dish Voltage: 380V 50Hz Power: 13.2 KW Temperature: 30ºC ~ 300ºC Dimension: 920*640*1100 MM 1. Heating by infrared rays 2. With auto timing alarm function 3. With omni-directional wheel, eas...
The Garment Layering System: 3-layer Principle There are many ways of achieving a good level of comfort, warmth and weather protection with outdoor clothing. However, intelligent layering allows people to adapt their clothing to suit both the weather conditions and the activity being carried out....