您要查找的是不是：
- Development and Application of Residuum Cracking Catalyst DVR-1 渣油裂化催化剂DVR-1的研制及其工业应用
- Keywords Akzo Nobel Chemicals;coke;residuum cracking catalyst;residue;FCC unit;catalyst poisoning;vanadium and nikel contents;economic effect; 阿克苏诺贝尔化学公司;焦炭;渣油裂化催化剂;渣油;流化催化裂化装置;催化剂中毒;钒镍含量;经济效益;
- A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- The marchers jumped off at the crack of dawn. 行军队伍在破晓时出发了。
- Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
- The riot police started to crack down on them. 防暴警察开始对他们采取镇压行动。
- The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
- 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。
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- 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。
- thermal residuum cracking 热裂残油
- 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。
- I had had a few beers and was completely non compos mentis. 我喝了些啤酒就头昏脑胀了。
- residuum cracking process 渣油裂化过程
- 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。
