您要查找的是不是：
- demagnetising equipment for magnetic crack detector 磁力探伤器用的退磁器
- magnetic crack detector 磁力探伤仪,磁力探伤器,电磁探伤仪
- DEVELOPMENT OF TUNGSTEN ELECTRODE CRACK DETECTOR 钨极裂纹探测仪的研制
- portable eddy-current crack detector 便携式涡流探伤仪
- The development automatic inspecting device for magnetic powder wheel couple crack detector model 3000 3000型轮对磁粉探伤机自动监测装置的研制
- 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。
- Dalian is a magnet for tourists. 大连是吸引游客的地方。
- The riot police started to crack down on them. 防暴警察开始对他们采取镇压行动。
- 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。
- Have another crack at solving this puzzle. 再试一试把这个难题解决了吧。
- This disco is a magnet for young people. 这家迪斯科舞厅经常吸引大批年轻的顾客。
- 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。
- A magnet attracts both iron and steel. 磁铁吸铁也吸钢。
- 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。
- Certain metals are attracted to a magnet. 某些金属会受磁石的吸引。
- 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。
- It shows the presence of a magnetic field. 这表明有磁场存在。
