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- In this article, sapwood area is used as a scalar to extrapolate the stand water use from whole tree water use measured by heat pulse velocity recorder(HPVR). 该文在单木液流测定的基础上,采用边材面积作为纯量,对京北山区水源保护林的主要树种油松、刺槐林进行由单木到林分耗水的推算。
- Conclusion Intracoronary Doppler flow velocity recording could be used to assess thetherapeutic effect during PTCA and stenting. 结论冠脉内血流速度描记技术可用于PTCA及支架植入术中评价治疗效果。
- Result also shows that by simulating wide band velocity records we can get acceleration and displacement time histories, but high frequency part of acceleration time histories will have partial loss. 由宽频带速度记录也可得到加速度时程和位移时程,但对加速度时程高频成分会有一定的损失;
- Objective To evaluate the effect of percutaneous transluminal coronary balloon angioplasty (PTCA) andstent implantation on coronary flow reserve by using intracoronary Doppler flow velocity recording. 目的应用冠状动脉内多普勒血流速度描记技术，评价经皮冠状动脉球囊扩张术(PTCA)及支架植入术对冠脉血流储备的影响。
- We needed someone to fix the tape recorder. 我们需要有人来修理录音机。
- He bought a new cassette recorder. 他买了一台新的盒式录音机。
- He was enthusing about his new pocket cassette recorder. 他对自己的新袖珍录音机爱不释手。
- Gazelles can move with astonishing velocity. 羚羊跑起来速度惊人。
- He showed me how to use the tape recorder. 他教我如何使用这台卡式录音机。
- John fixed the tape recorder by himself. 约翰靠他自己修理录音机。
- ultrasonic blood velocity recording method 超声血流流速描记法
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- constant velocity recording method 恒速录音法
- The car was moving at such a velocity! 那辆汽车的速度简直太快了！
- The BBC often plays a record to fill in. 英国广播公司经常在节目空档时播放唱片。
- constant linear velocity recording 定速录音法
- Cassette recorder is not allowed in the concert. 录音机不准带入音乐会会场。
- Gazelles can movewith astonishing velocity. 羚羊跑起来有时速度惊人。
- The scoundrel's crimes were too numerous to record. 这个歹徒罪行累累，罄竹难书。
- The hare darted off with the velocity of a bird. 野兔像鸟一样快速掠去。
