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- Hayward Tyler has been BHEL's primary supplier of glandless motor pumps for boiler circulating pump duties for the last 20 years, the company says. 据该公司称，Hayward Tyler，作为锅炉循环泵无密封垫电动泵的提供者已经有20年的历史了。此工程完成之后，Hayward Tyler装置在此大陆的安装总数将会超过120。
- I think it my duty to serve the people. 我认为为人民服务是我的责任。
- How can I get shut of such an unwelcome duty? 我自发以才能逃脱掉这个令人如此计厌的差事呢？
- A small party of men were told off for burial duty. 一小组人被分派去执行掩埋的任务。
- Be it our duty to comply with his request? 我们有义务满足他的要求吗？
- He who does his duty is worthy of praising. 凡是忠于职守的人都值得奖励。
- I feel it my duty to speak frankly to you. 我觉得我有义务要坦白地对你说。
- I felt bad that I had not done my duty. 我很难过，我没有履行自己的职责。
- It is my painful duty to tell him he is dying. 要我把他即将去世的事告诉他，这使我十分为难。
- He is on night duty three days a week. 他一个星期要上三天夜班。
- The danger recalled him to a sense of duty. 这危险的事唤起了他的责任感。
- I'm duty bound to visit my old aunt. 我有义务去探望年老的姑妈。
- A tyre expands when you pump air into it. 轮胎一打气就鼓起来。
- The soldier volunteered for guard duty. 那个战士自告奋勇去站岗。
- A young lieutenant was named for duty. 一名年轻的中尉被任命担任这项职务。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- He who does his duty is worth praising. 凡是忠于职守的人都值得赞扬。
- This tire is flat; you didn't pump enough air in. 这个轮胎没气了;你并没打足气。
- An old wooden box did duty for a table. 把旧木箱当作桌子。
- We have a pump for drawing water from the well. 我们用一个水泵从井里抽水。
