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Keywords pulse combustion;autothermic cracking;olefins; 脉动燃烧;氧化裂解;烯烃;
A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
The marchers jumped off at the crack of dawn. 行军队伍在破晓时出发了。
autothermic cracking 自裂解
The riot police started to crack down on them. 防暴警察开始对他们采取镇压行动。
That was a cracking shot he played. 他这一下打得妙极了。
You'll crack up if you go on working so hard. 你继续这样拚命干下去，身体会吃不消的。
There's a lot to be done, so let's get cracking. 工作很多，咱们开始干吧。
Police are cracking down on drug dealers. 警方现对贩毒分子严惩不贷。
They sat by the fire, cracking jokes. 他们坐在火堆旁讲笑话。
Have another crack at solving this puzzle. 再试一试把这个难题解决了吧。
She made a crack about his fatness. 她取笑他肥胖。
There is a crack in this window. 这扇窗户上有个裂纹。
She got up at the crack of dawn. 天刚亮她便起床了。
Mary found knitting a hard nut to crack. 玛丽发现编织并非易事。
He was the tough guy, the big shot, who gave orders with the crack of a whip. 他是个威风凛凛发号施令的强悍的家伙，是个大人物。
Don't be angry. He is the man who likes cracking jokes. 不要生气，他是一个爱开玩笑的人。
I'd do anything to see you crack a smile. 为了博得你的一笑，我情愿做任何事。
Her foot wedged in the narrow crack. 她的脚卡在那狭缝里了。
Close examination revealed a crack in the vase. 花瓶经仔细检查发现有裂缝。