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- The new muffler device has simple structure,it has lesser effect on the resistance loss of chief ventil... 该消声装置结构简单,对主要通风机的阻力损失影响小,防尘、防潮及降噪效果明显,可广泛的应用于煤矿主要通风机的消声降噪。
- Research on Muffler Device Design of Chief Ventilators in Mine 矿用主要通风机消声装置的设计研究
- Keywords chief ventilators;dustproof;moistureproof;muffler device; 主要通风机;防潮;防尘;消声装置;
- Rice is the chief crop in most southern provinces. 稻子是大多数南方省份的主要作物。
- The chief conductor turned out to be a young woman. 列车长原来是一位青年妇女。
- The chief aim of man is not to get money. 人的主要目的并不是赚钱。
- The President of the US is the chief executive. 美国总统是最高行政长官。
- My chief worry is that he doesn't have experience. 我的主要忧虑是他没有经验。
- The chief accountant of a manufacturing group. 一个制造业集团的总会计师。
- Rice is the chief crop in this ares. 稻子是这一地区的主要作物。
- He has been quietly booted out as chief. 他己被悄悄地免掉主任的职务。
- What are the chief exports of your country? 你们国家有哪些主要的出口物品？
- What is the chief town in Norway? 挪威的主要城市是哪一个？
- Parliament is the chief organ of government. 议会是政府的主要机关。
- It was courageous of him to oppose his chief. 他敢反对他的上司，真是勇敢。
- He's the chief, in charge of the whole show. 他是主管，负责全盘工作。
- The chief reason for going to school is to learn. 上学的主要原因是为了学习。
- His chief asset is his winning smile. 他的主要资本是那迷人的微笑。
- I did so for many reasons, and this one in chief. 我这样做的理由很多,而这个是主要的。
- Price and quality are the two chief considerations. 价格和品质是两个主要考虑的问题。
