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- certified gas free 经鉴定不含易燃气体
- Open pump suction venting valve until gas free. 打开泵入口管线上的放空阀，至无气体。
- Open pump casing high pointing venting and discharge high pointing venting until gas free. 打开泵体的高点放空阀及出口管线高点放空阀，排气至无气体。
- Fuel oil transferring, sludge removal, cleaning, ventilating and gas free of the relevant fuel tanks are required before hot work for repair on the above-mentioned items Nos.4 &5. 为上述第4和5项进行热工修理前与其有关的燃油舱内的燃油、油渣需要驳出、舱需要清洁、通风和测爆。
- He was certified and sent to a mental hospital. 他经诊断为精神失常而送往精神病院。
- I'll refill my cigarette lighter with gas. 我将给打火机再灌满汽油。
- All the accounts of the firm were certified as correct. 公司所有帐目被证明为正确无误。
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- We are well served with gas in this town. 这个城镇煤气供应得很好。
- An authenticated copy of a will so certified. 遗嘱检验文件副本经这样检验过的遗嘱的已鉴定过的副本
- He cooks his meal with a gas stove. 他用煤气炉做饭。
- Don't forget to drop by at the gas station. 别忘了到煤气站去看看。
- I was given gas when they pulled my tooth out. 给我拔牙时用了一氧化二氮。
- His long speech was nothing but gas and hot air. 他的长篇大论只是吹牛和空话。
- The gas main explode and set fire to the house. 煤气总管爆炸引起房子失火。
- A whole tankful of gas dropped away because of the tiny leak. 由于这个小小的漏洞，整整一油箱的汽油都漏光了。
- We finally drove up to a gas station. 我们最后驶近一加油站。
- Frank rented out his gas station. 弗兰克把他的加油站租了出去。
- The bank manager certified my cheque. 银行经理确认我的支票正确无误。
- Quick, turn off the gas;the milk will boil over. 快把煤气关掉，牛奶要溢了。
