Or the universe might even recollapse if dark energy density falls to a negative value.

当然宇宙也有可能因为暗能量密度降为负值，而再度塌陷。

Satellite retroreflector is used as laser ranging cooperative target to improve the intensity of reflected beam, which has close relationship with processing parameters of the retroreflector.

卫星角器作为激光统中的合作目标, 其主要作在于提高地面接收机范围光束的能量密度。

Or the universe might even recollapse if dark energy density falls to a negative value.

当然宇宙也有可能因为暗能降为负值，而再塌陷。

Satellite retroreflector is used as laser ranging cooperative target to improve the intensity of reflected beam, which has close relationship with processing parameters of the retroreflector.

卫星角反射器作为激光测距系统中的合作目标, 其主要作在于提高地面接收机范围内反射光束的能。

Or the universe might even recollapse if dark energy density falls to a negative value.

然宇宙也有可能因为暗能量密度降为负值，而再度塌陷。

Satellite retroreflector is used as laser ranging cooperative target to improve the intensity of reflected beam, which has close relationship with processing parameters of the retroreflector.

卫星角反射器作为激光测距系统中的合作目标, 其主要作在于提高地面接收机范围内反射光束的能量密度。

Or the universe might even recollapse if dark energy density falls to a negative value.

当然宇宙也有可因暗量密度降负值，而再度塌陷。

Satellite retroreflector is used as laser ranging cooperative target to improve the intensity of reflected beam, which has close relationship with processing parameters of the retroreflector.

卫星角反射器光测距系统中合目标, 其主要在于提高地面接收机范围内反射光量密度。

Or the universe might even recollapse if dark energy density falls to a negative value.

当然宇宙也有可能因为暗能量密度降为负值，而再度塌陷。

Satellite retroreflector is used as laser ranging cooperative target to improve the intensity of reflected beam, which has close relationship with processing parameters of the retroreflector.

卫星角反射器为激光测距系统中的标, 其主要在于提高地机范围内反射光束的能量密度。

Or the universe might even recollapse if dark energy density falls to a negative value.

当然宇宙有能因为暗能量密度降为负值，而再度塌陷。

Satellite retroreflector is used as laser ranging cooperative target to improve the intensity of reflected beam, which has close relationship with processing parameters of the retroreflector.

卫星角反射器作为激光测距系统中的合作目标, 其主要作在于提高地面接收机范围内反射光束的能量密度。

Or the universe might even recollapse if dark energy density falls to a negative value.

当也有可能因为暗能量密度降为负值，而再度塌陷。

Satellite retroreflector is used as laser ranging cooperative target to improve the intensity of reflected beam, which has close relationship with processing parameters of the retroreflector.

卫星角反射器作为激光测距系统中的合作目标, 其主要作在于提高地面接收机范围内反射光束的能量密度。

Or the universe might even recollapse if dark energy density falls to a negative value.

当然宇宙也有可能因为暗能量密度降为负值，而再度塌陷。

Satellite retroreflector is used as laser ranging cooperative target to improve the intensity of reflected beam, which has close relationship with processing parameters of the retroreflector.

卫星角反射器作为激光测距系统作目标, 其主要作在于提高地面接围内反射光束能量密度。

Or the universe might even recollapse if dark energy density falls to a negative value.

当然宇宙也有可能因暗能量密度值，而再度塌陷。

Satellite retroreflector is used as laser ranging cooperative target to improve the intensity of reflected beam, which has close relationship with processing parameters of the retroreflector.

卫星角反射器作激光测距系统中的合作目标, 其主要作在于提高地面接收机范围内反射光束的能量密度。