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- These cells are built into concentrating collectors that use a lens to focus the sunlight onto the cells. 这些电池被装入用一种镜片把阳光聚焦在这些电池上的聚光型集热器中。
- But because the lenses must be pointed at the sun, the use of concentrating collectors is limited to the sunniest parts of the country. 但是，因为镜片必须要冲着太阳，使用聚光型集热器仅限于阳光充足的国家。
- My husband is a stamp collector. 我丈夫是个集邮者。
- A collector of taxes or tribute from the public. 征收员从公众那儿收取赋税或贡物的人
- 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 collector bubbled excitedly about his latest discoveries. 那位收藏家兴致勃勃地谈他最新的发现。
- The collector made an appraisal of $2000 on the drawing. 收藏家对那幅画的估价是二千美元。
- A collector of antique cars asked Frank to look out for a 1906 gas head lamp. 一位老式汽车收藏家要弗兰克留神1906年产的煤气前灯。
- A collector of rare insects will show us some of his latest discoveries. 一位稀有昆虫采集家将给我们看一些他的最新发现。
- The collector has acquired a fine collection of impressionist paintings. 这位收藏家收集到大量印象派绘画。
- The rent collector comes tomorrow, and I've no money; how can I put him off? 收房钱的人明天来，我没有钱，可我怎样才能把他支走呢？
- He is concentrating on setting a poem to music. 他正全视贯注地为一首诗歌谱曲。
- The vase turned out to be a collector's item. 这个花瓶成为收藏家所争取的珍物。
- I was concentrating so hard that I was indifferent to the noise outside. 我思想高度集中,不在乎外面的喧嚷声。
- He's an unsullied tax collector. 他是一位一身清白的税务员。
- Troops are concentrating south of the river. 军队正向河的南边集结。
- The debt collector kept dunning her for the rent. 收账人一直在催逼她缴租金。
- She has been concentrating on her career. 她一直专心致志于她的本职工作。
- He's a tax collector of unsullied reputation. 他是个名声清白的税务员。
- I think we are concentrating on usability. 我想我们正把重点放在可用性上。
