jack-hammer

英式音标：[d'ʒækh'æmər]播放读音

美式音标：[d'ʒækh'æmər]播放读音

词汇分类：英语高级口译资格证书考试 高级听力教程（第四版）

词义：

释义

气锤；

英英释义

jack-hammer

n.a hammer driven by compressed air

同义词：air hammerjackhammerpneumatic hammer

用法：

权威例句

Method and apparatus for regulating heater cycles to improve fuel efficiency

High-Temperature Film Processing its Effect on Quality

From "And after Many a Summer Dies the Duck"

Aminopyrazine CB1 receptor inverse agonists

Interactive Video Posters StoryKit: Tools for children to build room-sized interactive

Handelsblatt JahrestagungDie Automobil-Industrie.

Designing StoryRooms: interactive storytelling spaces for children

Antimicrobial Activities and Structures of Two Linear Cationic Peptide Families with Various Amphipathic β-Sheet and α-Helical Pot...

A model for scheduling of object-based, distributed real-time systems

Formation of Bis-(Methylthio)-Methylene from Methyl Orthothioformate and Potassium Amide

同义词：pneumatic hammer,Jap

造句：

1. They may or may not portend a collapse of civilization.

它们或许预示着文明的崩溃.

来自英汉非文学 - 历史

2. The change did not portend a basic improvement in social conditions.

该变化没有预示社会状况的根本改观。

来自辞典例句

3. Black clouds portend a storm.

乌云为暴风雨的前兆.

来自辞典例句

4. What do these strange events portend?

这些奇怪的事件预示着 什么 ?

来自辞典例句

5. Not, perhaps, a great portend for a new generation of robots.

但是在现实中, 这可能预示着下一代的新机器人.

来自互联网

[ portend 造句 ]