diff --git a/common/celestial_data_service.py b/common/celestial_data_service.py
index 2a07db88eb9f375a2f68384034434efab34d27bf..276a1b3973119c4b27883b75a94cb9d849e7355f 100644
--- a/common/celestial_data_service.py
+++ b/common/celestial_data_service.py
@@ -402,9 +402,11 @@ def get_init_pos_vels_2():
     return init_pos_vels
 
 
-def init_bodies_pos_vels(bodies):
+def init_bodies_pos_vels(bodies, init_pos_vels_fun=None):
+    if init_pos_vels_fun is None:
+        init_pos_vels_fun = get_init_pos_vels
     # 获取模拟的初始位置和速度
-    init_pos_vels = get_init_pos_vels()
+    init_pos_vels = init_pos_vels_fun()
 
     for body in bodies:
         pos_vels = init_pos_vels.get(type(body).__name__.lower(), None)
diff --git a/sim_scenes/featured/two_way_foil_sim.py b/sim_scenes/featured/two_way_foil_sim.py
index b749c67c5b3af8bde540e1654a9262e17e50cff0..a295775e2ab6627427eb23ec8076e1d57825c476 100644
--- a/sim_scenes/featured/two_way_foil_sim.py
+++ b/sim_scenes/featured/two_way_foil_sim.py
@@ -10,7 +10,7 @@
 from ursina import camera, application, lerp, Vec3
 from bodies import Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
 from common.celestial_data_service import init_bodies_reality_pos_vels, conv_to_astropy_time, \
-    set_solar_system_celestial_position, init_bodies_pos_vels
+    set_solar_system_celestial_position, init_bodies_pos_vels, get_init_pos_vels_2
 from common.consts import SECONDS_PER_YEAR, AU
 from common.func import calculate_distance
 from bodies import Earth
@@ -74,7 +74,7 @@ class TwoWayFoilSim(UniverseSimScenes):
         self.saturn.two_way_foil_dt = 0.005 * self.two_way_foil_dt_factor
         self.uranus.two_way_foil_dt = 0.002 * self.two_way_foil_dt_factor
 
-        init_bodies_pos_vels(self.bodies)
+        init_bodies_pos_vels(self.bodies, init_pos_vels_fun=get_init_pos_vels_2)
 
     def build(self):
         """