您要查找的是不是：
- ultrasonic obstacle detector 超声波障碍探测器
- Supply ultrasonic wave detector tube. 供应超声波检测管。
- Don't shrink from the thought of obstacle. 不要一想到困难就退缩。
- Lack of education is an obstacle of success. 缺乏教育是成功的障碍。
- The doctors gave him an ultrasonic brain scan. 医生给他做了脑部超声波扫描检查。
- An obstacle or a span to be jumped. 需跳越的障碍或跨度
- Her father's opposition remained only their obstacle. 她父亲的反对是他们唯一的障碍。
- An obstacle to or a censoring of free speech. 言论限制对言论自由的审查或言论自由的障碍
- Ultrasonic obstacle avoidance 超声波避障
- ultransonic obstacle detector 超声波障碍探测器
- She has the determination to overcome all the obstacle to success. 她有决心克服通往成功路上的一切障碍。
- A sand trap serving as an obstacle on a golf course. 障碍，洞在高尔夫球比赛中用作障碍物的沙坑
- Her parents' opposition is an obstacle to her marriage. 她父母的反对是她结婚的障碍。
- Not be able to pass his mathematics exam proved an obstacle to his career. 他数学考试不及格是他前途上的一大障碍。
- An obstacle, such as a sand trap, found on a golf course. 障碍地区如沙障等高尔夫球球道上的障碍物
- A marine detector is a hydrophone. 海洋检波器是水中地震检波器。
- Thermopile is usually a blackened thermal detector. 热堆一般是个涂黑了的热探测器。
- Set up an ultrasonic wire bonding laboratory. 成立超声波电子焊接实验室.
- The detector tube is filled with nitric oxide. 检测管中充满了氧化氮。
- The acoustics of ultrasonic sound. 超音频声音的音响学
