船员舱沿用了熟悉的带弧形挡热板的圆锥形状 这已被证明是探月返回时的最佳形状。
The crew module borrows the familiar conical shape with a curved heatshield, which has proven to be the optimal shape for missions returning from the moon.
印尼即坐落在极不稳定的“火山带”上。这条火山带呈弧形，围绕着太平洋周边地区，充满了地质不稳定。
Indonesia sits on the volatile "Ring of Fire," an arc of seismic instability around the Pacific rim.
目的探讨改良带刃弧形梅花针内固定治疗股骨下段骨折的临床疗效及优点。
Objective To study the clinical effects and advantages of modified arc intramedullary nail(MAIN) for the treatment of the fracture of distal femoral shaft.
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