如何将两个不同的部分分配给abaqus上的单个零件

from abaqus import *
from abaqusConstants import *
import part

# 创建一个新的零件
myPart = mdb.models['Model-1'].Part(name='MyPart', dimensionality=TWO_D_PLANAR, type=DEFORMABLE_BODY)

# 定义第一个部分的几何和属性
s = myPart.ConstrainedSketch(name='__profile__', sheetSize=200.0)
g, v, d, c = s.geometry, s.vertices, s.dimensions, s.constraints
s.setPrimaryObject(option=STANDALONE)
s.rectangle(point1=(0.0, 0.0), point2=(10.0, 5.0))
myPart.BaseShell(sketch=s)
myPart.Material(name='Material-1')
myPart.Section(name='Section-1', material='Material-1', thickness=1.0)
region = myPart.Set(faces=myPart.faces.findAt(((5.0, 2.5, 0.0), )))
myPart.SectionAssignment(region=region, sectionName='Section-1')

# 定义第二个部分的几何和属性
s = myPart.ConstrainedSketch(name='__profile__', sheetSize=200.0)
s.setPrimaryObject(option=STANDALONE)
s.rectangle(point1=(10.0, 0.0), point2=(20.0, 5.0))
myPart.BaseShell(sketch=s)
myPart.Material(name='Material-2')
myPart.Section(name='Section-2', material='Material-2', thickness=2.0)
region = myPart.Set(faces=myPart.faces.findAt(((15.0, 2.5, 0.0), )))
myPart.SectionAssignment(region=region, sectionName='Section-2')

# 创建装配并添加零件
myAssembly = mdb.models['Model-1'].rootAssembly
myAssembly.Instance(name='MyPart-1', part=myPart, dependent=ON)