The resistance of epoxy-modified phenolic resin to medium in oil well was mainly discussed.

A manufacturing process of high performance coated sand phenolic resin was introduced.

介绍了一种高性能覆膜砂用酚醛树脂的制作工艺.

The heat-resistant of the modification phenolic resin had been improved markedly.

研究表明,改性后酚醛树脂的耐热性得到了显著的改善.

An avid stamp collector , John rides the subject pretty hard whenever it is introduced.

约翰是个热心的邮票收藏家, 只要有人提起集邮,他就会滔滔不绝.

Although I don't collect photos or postcards, I am an avid stamp collector.

尽管我不收集照片或明信片, 我却是个热心的邮票收集者.

I am a stamp collector. I've collected more than five hundred stamps.

我是个邮票收集者, 我已经收集了五百多张邮票.

The stamp collector decided to get that rare stamp at all costs.

这个集邮迷决心无论代价如何都要搞到那枚稀有的邮票.

The stamp collector is said to have a unique stamp.

据说那位集邮者有一张独一无二的邮票.

My son is a stamp collector.

我儿子是集邮爱好者.

She has shown me her stamp collection.

她给我看了她的集邮册.

I'm going to bring my stamp collection.

我要把我收集的邮票带来.

Walk up and see our wonderful stamp collection.

走近些,看看我们集的邮票多好.

The boy showed me his stamp collection.

这个男孩把他的集邮册拿给我欣赏.

He has lost all his interest in stamp collection.

他对集邮再也不感兴趣了.

He _ rescued __ his stamp collection from the burning house.

他从燃烧的房子中抢救除了他的收藏邮票.

Frankiln D. Roosevelt never lost his interest in stamp collection.

法兰克林·D · 罗斯福对集邮从未失去兴趣.

Starting a stamp collection is easy and not very expensive.

着手开始集邮是很容易的而且花费也不高.

Well , I have a large stamp collection.

我收集了很多邮票.

She derives great pleasure from her stamp collection.

她从集邮中获得很大乐趣.

I'll trade you my stamp collection for your model boat.

我想用我搜集的邮票换你的模型船.

Cerebral venous thrombosis ( CVT ) was formerly considered a rare disorder, associated with an unfavorable outcome.

从前,脑 静脉 血栓形成被认为是一种罕见的疾病, 而且预后很不好.