Unlike other rockets, Falcon 9's upper and lower stages do not use explosive bolts to separate mid-flight.
不同于其他火箭，飞行中，猎鹰9号的上下级不使用爆炸螺栓分离。
In order to adjust Upper Jingjiang stretch fluvial regime and predict its change tendency after completion of TGP, a physical model study on Upper Jingjiang stretch was carried out at various stages.
为了调整上荆江河势及预测三峡工程兴建后上荆江河势变化趋势，分阶段进行了上荆江实体模型河势调整试验和河床冲刷试验研究工作。
The upper leaves of flue_cured tobacco CV. NC89, K326, RG11 were sliced, and their changes of thickness and dissecting structure were observed from the stages of yellowing to color fixing.
以烤烟品种NC89、K326、RG11的上部叶为材料，对变黄期至定色期烟叶厚度及解剖结构的变化进行了切片观察。
Thoracic and cervical decompression in one or multiple stages should be performed for those with severe upper and lower extremities syndrome, and operation interval should be less than one year.
下肢症状均重者应一期或分期行颈脊髓减压术和胸脊髓减压术，而分期手术者的手术间隔时间不宜过长。
The soil temperature under the high-frequency drip irrigation during the growing stages was lower, and cotton roots distributed mainly in the upper soil.
各生育阶段高频滴灌的土壤温度比对照低，而且根系分布浅。
Unlike other rockets, Falcon 9's upper and lower stages do not use explosive bolts to separate mid-flight.
不同于其他火箭，飞行中，猎鹰9号的上下级不使用爆炸螺栓分离。 取而代之的是气动分离系统，它的测试可在地面进行。
Unlike other rockets, Falcon 9's upper and lower stages do not use explosive bolts to separate mid-flight.
不同于其他火箭，飞行中，猎鹰9号的上下级不使用爆炸螺栓分离。 取而代之的是气动分离系统，它的测试可在地面进行。
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