The elemental services, used by the service choreography layer and also by user interface applications, are implemented by service applications.

基本服务(由服务编排层使用，也由用户界面应用程序使用)通过服务应用程序实现。

youdao

Recovered elemental sulphur can be an exceptionally pure bulk commodity (>99. 9%). The buyer would like to keep that purity all the way to the end user.

回收硫是一种异常纯净的散装商品（纯度大于99．9％），在运抵终端用户的途中买方希望始终保持这一纯度。

youdao

"What Facebook wants is to put itself at the front of the Android user experience for as many Facebook users as possible and make Facebook more elemental to their customers' experience, " said Forrester analyst Charles Golvin.

NPR: Eyes On Facebook Mobile Event As Company Evolves