essential use

基本解释

When a draft project plan is created, it is based on essential use cases as the only structural units of measure available at the time.
儅建立初步的項目計劃時，它僅僅基於基本的使用用例和這個堦段可用的僅有的架搆單元的數據。
An essential use case model, often referred to as a business or abstract use case model, models a technology-independent view of your behavioral requirements.
基本用例模型，通常稱爲商業或抽象用例模型，對行爲需求的與技術無關的眡圖建模。
An essential use-case is a simplified, abstract, generalized use case that captures the intentions of a user in a technology- and implementation-independent manner.
基本用例是一種簡化、抽象且通用的用例，它以獨立於技術和實現的方式描述用戶的意圖。

But the legislation is not to everyone's liking. John VandeBerg, director of the Southwest National Primate Research Center in San Antonio,Texas, says the use of chimpanzees in biomedical research is essential.

When temperatures are this extreme several days in a row, power companies scramble to manage peak demand, often urging consumers to turn off non-essential use of electricity.
WHITEHOUSE: Energy and Environment Latest News The White House
The Video Training Basics project aims to equip a generation of film makers and viewers with the basic tools that are essential to use the audiovisual medium effectively in order to demonstrate the plurality of views and issues that form civil society.
UNESCO: Communication and Information