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- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Harden up a little, we need more speed. 把帆索拉紧一点,我们需要加快速度。
- Hot steel is quenched to harden it. 烧热的钢淬火使它坚硬。
- The varnish takes a few minutes to harden. 清漆几分钟就能变硬。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Don't harden your heart against him. 别对他硬心肠。
- nitrogen hardening 氮化
- So we find that hardening operation is made up of heating and quenching. 因此我们发现淬火工序包括加热和淬硬两个步骤。
- Please harden in the main ropes, the sail's not tight enough! 请把主要的绳索拉紧些,帆扯得不够紧!
- Anneal means make harden steel soft and remove brittleness. 退火就是使淬火钢变软并消除其脆性。
- Able to set and harden under water, as Portland cement. 在水中变硬的能在水下定型并变硬的,如波特兰水泥
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- He often went to the gym to harden his muscles. 他过去常到健身房锻炼肌肉。
- They harden clay by putting it in a fire. 他们把粘土坯放在炉火里使其变硬。
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- They let the liquid harden on a glass surface. 并让液体在玻璃表面硬化,
- Sample gas tubes are flushed with nitrogen. 采气管得用氮气吹扫。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries