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Polybutylene terephthalate (PBT) is a semicrystalline thermoplastic polymer formed by a condensation process.

PBT是一通过浓缩成型而制备的,一晶热塑性塑料。

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This paper introduces the preparing method, the structure, the properties and applications of poly (trimethylene terephthalate) (PTT), and it compared with PET, PBT et al. engineering plastics.

介绍了聚对苯二二醇酯(PTT)的制法、构、性能及应用,并和PET、PBT等工程塑料进行了比较。

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Louis Braille, Louis Pasteur, Louisa, Louise, Louisiana, Louisiana Purchase, Louisianian, Louisville, LouisXIV, loun,

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3G, 401(K), a,

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VOA Special 201410

The PBT is less costly to take and does not require use of the Internet.

考的费用要低些,不需要使用互联网。

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VOA Special 201410

Many scholarship programs will accept the PBT results when a student first asks for financial aid.

当学生申请奖学金时总会接受考成绩。

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VOA Special 201410

The other version of the test is called the Paper-based Test or PBT. It is still used in some developing countries.

这种考试的另一个版本是托福考,叫PBT,目前一些发展中国家仍然使用这种考试形式。

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VOA Special 201410

The PBT has an area to test grammar, the rules governing the use of words and phrases. The Internet-based Test does not.

考有考察语法的部分,就是词汇和短语用法规则,而网考没有这个内容。

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VOA Special 201410

If you score below 500 on the PBT or 70 on the iBT, study the fundamentals for a few months and come back to the TOEFL later.

如果你考成绩在500以下,或机考在70分以下,那么就需要学几个的基本知识,然后再回到托福准备中。

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Engvid超级外教Rebecca - 托福雅思托业考试

Now, there was and there still is another IELTS test also available, at least at the time that we're recording this lesson, which is called the PBT, which stands for " Paper-Based Test" .

还有另一种雅思考试可供选择, 现在,至少在我们录制这节课的时候,它被称为 PBT, 代表“Paper-Based Test” 。

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3G, 401(K), a,
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