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.

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。

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A method that adding an insulating functional layer to the interior of the heatshield is adopted to improve its insulation performances while maintaining its original excellent ablative performances.

采用在防热套内层增加隔热功能层的方法，在保持传统防热套良好烧蚀性能的同时，其隔热性能得到了较大地提高。

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The US space agency had identified two "gap fillers" that were sticking out between heatshield tiles near Discovery's nose section, each by less than 3cm (1.2in).

BBC: NEWS | Science/Nature | Astronaut fixes shuttle problem

Experts said protrusions on the otherwise smooth belly of the shuttle could disturb the air flow during re-entry, causing turbulence that raises temperatures on heatshield tiles downstream.

BBC: NEWS | Science/Nature | Astronaut fixes shuttle problem

Discovery will take parts and supplies to the ISS and test new safety features such as a repair-kit for heatshield tiles and a 15m-long robotic arm that will inspect the shuttle for damage in orbit.

BBC: NEWS | Science/Nature | Discovery blasts off from Florida