“套管头”用英语怎么说

本文介绍了新型套管头的结构 、 工作原理 、 强度 、 安装操作及推广应用.Its structure, working principle, strength, assembling procedure and popularization are described.国内各油气田使用的套管头分为环形钢板 、 简易套管头和正规套管头三大类,它们在现场使用中均存在一些问题.The three - type casing heads - ...

n.酸解（作用）...

n.租用，租赁( tenancy的名词复数 )，租用或租赁期...

incite的一般过去时为：incited...

secondhand的音标：secondhand的英式发音音标为：['sekənd'hænd]secondhand的美式发音音标为：['sekəndhænd]...

“激烈”的英语可以翻译为：intense，sharp，fierce，violent，fury ...

The drugs work well at first but gradually lose their effectiveness.这些药的效果起初非常好,但后来逐渐失效.To assert this is to denigrate the effectiveness of the police.坚持这一点就是贬低警方的办事能力.Bad diction marred the effectiveness of his speech.措...

encumbrances的音标：encumbrances的英式发音音标为：[en'kʌmbrənsɪz]encumbrances的美式发音音标为：[en'kʌmbrənsɪz]...

“泻剂”的拼音为：xiè jì...

“后腿的”的英语可以翻译为：crural，crus ...

他们拥有的弹头足以将世界毁灭好几次。Their warheads are enough to obliterate the world several times over.一枚弹道导弹的有效载荷是它的弹头.The payload of a ballistic missile is its warhead.它能以原子弹头袭击目标.It can hit a target with an atomic warhead....

gamomorphism的音标：gamomorphism的英式发音音标为：[ɡəməʊ'mɔ:fɪzəm]gamomorphism的美式发音音标为：[ɡəmoʊ'mɔfɪzəm]...

她好像捕捉到他语气中不坚决的成分.She seemed to catch the uncertainty of his voice....

n.蓝视症...

“快门”的拼音为：kuài mén...

heavenward的音标：heavenward的英式发音音标为：['hevnwəd]heavenward的美式发音音标为：['hevnwərd]...