英语语法分析

A thin-trunked tree curls to the right among tannish rocks and some moss.

在棕褐色的岩石和一些苔藓之间，一棵瘦小的树向右卷曲。

The testing instrument has a wide application in the testing field of trunked communication.

这种测试仪器在集群通信测试领域应用前景广阔。

In 1998, ETSI publicized TETRA protocal, which is a standard of digital trunked radio communication system.

TETRA协议是欧洲电信标准协会(etsi) 1998年公布的一种数字集群通信系统标准。