查询词典 porpoises

This is not easy, and may require two porpoises working together.

这并非易事，可能需两只海豚合力方可。

During the night two porpoises came around the boat and he could hear them rolling and blowing.

晚间，船边来了两只海豚，他可以听见它们在那里翻滚和喷水。

In 1928 some porpoises were photograph ed working like beavers to push ashore a waterlogged mattress.

1928年，有人拍摄到了海豚像海狸一样把浸透水的床垫推上岸的情景。

This is not easy, and may require two porpoises working together

另一个游戏是，当海龟在海洋馆游泳时，一只海豚猛冲下去，用腹部撞海龟的硬壳。

In 1928 some porpoises were photographed working like beavers to push ashore a waterlogged mattress.

在1928年，有人拍摄到了海豚像海狸一样把浸透水的床垫推上岸的情景。

In 1928 some porpoises were photographer working like beavers to push ashore a waterlogged mattress.

在1928年，一些海豚摄影工作爱好者喜欢将装满水的充气皮垫推向岸边。

Lesson 18 Porpoises 海豚 First listen and then answer the following question.

听弽音，然后回答以下问题。

In 1928 some porpoises were photographer working like beavers to push ashore a waterlogged mattress.

海洋摄影室的生物学家指出，无论海豚多么聪明，认为它们有救人的动机可能是错误的。

Lesson 18 Porpoises 海豚 First listen and then answer the following question.

听录音，然后回答以下问题。

However, you will also be able to spot porpoises, seals, sea lions, dolphins and killer and humpback whales.

不过，您也可以现场海豚，海豹，海狮，海豚和杀人和驼背鲸。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。