Our chemistry teacher often reduces a compound to its components in lab.

在中化学老师常把化合物分解为各种成分。

I have only a rudimentary knowledge of chemistry.

只有些粗浅的化学知识。

He is hot in mathematics and chemistry.

他数学和化学极好。

The new chemistry lab was paid for by friends of the college.

新的化学是由学院的资助者出钱建的。

As a new subject,sonochemistry had been applied in many chemistry and chemical industry fields.

声化学作为一门新的学科,已经广泛应用于化学及化工领域。

As Mr. Sinclair was ill, Mr. Cook substituted as our teacher of chemistry.

由于辛克莱先生病了, 库克先生代任们的化学老师。

For her twelfth birthday, she asked for a chemistry set.

她要一个化学箱作她12 岁生日的礼物。

To avoid the argument, we employed thiophosphate chemistry in the repair patch mapping.

为了避免此项疑虑，因此改用含硫磷酸的化学方法来探讨可能修复路径。

It is betimes operation, radialization and chemistry therapy.

宜手术切除,术后辅以放、化疗。

The paper is about application of several technology on biological chemistry in hereditism.

本文介绍几种生物化学技术在遗传学中的应用。

The fundamentals of inorganic chemistry are very important.

无机化学的基础很重要。

The chief sciences are chemistry, physics and biology.

主要的自然科学是化学、物理和生物。

The chemistry book had asummary at the end of each chapter.

那本化学书于每章末均附有一概要。

The course will encompass physics, chemistry and biology.

课程将包括物理、化学和生物学。

We put chemicals in test tubes in our chemistry class.

们上化学课时把化学药品放进试管里。

I hope to go to medical school eventually. In the meanwhile, I’m going to study chemistry.

希望最终能上医学院，这之前打算学化学。

Did you pass your chemistry exam?

你化学考试及格了吗?

She instructs a class in chemistry.

她给某班学生上化学课。

The student was excellent in chemistry.

这个学生的化学成绩优异。

Applicable to acid (except vaporish acid),alkali, ammonia, vapor, oil, organic solvent ,chemistry corrosiveness, filling airtight of rotary pump.

适用酸（除发烟硫酸外）碱，，氨，蒸气，油品，有机溶剂，化学腐蚀性介质的各种旋转泵，阀门的填料密封。