And hence the mean lifetimes of the two brands of engines are equal . 也就是说，两种牌号引擎的平均寿命是相等的。
Attendant : i do not know , sir . what is the license number of your car ? 服务员：我不知道，先生。你的汽车牌号是什么？
A great number of enzyme and bacterial preparations with a wide variety of trade names have been marketed as agents . 各种各样的商品牌号的酵素和细菌制品，已经作为试剂销售。
Different grades of crystal polystyrene molding pellets range from 150, 000 to 350, 000 weight average molecular weight . 不同牌号的结晶聚苯乙烯模塑粒料平均分子量范围从150，000-350，000。
The president said he probably should have known it wasn't meant for him when he couldn't recognize the brand of perfume that emanated from the stationary . 总统说，他本应该知道这封信不是写给他的，因为他辨别不出信笺上散发出香味的香水牌号。
B , mgo - c brick for ladle slag line , mt - 14a B精练钢包炉渣线镁碳砖，牌号为mt - 14a
Designation and classification of rapidly quenched metals 快淬金属分类和牌号
The suspect is using a grey mercedes , iam 469 嫌疑犯驾驶一辆灰色奔驰牌号iam 469
Precious metals and its alloys designation system 贵金属及其合金牌号表示方法
Copper and copper alloys - european numbering system 铜和铜合金.欧洲牌号系统
