请教一句英文的意思

懵懂干细胞

often maintenance of multipotency or
! K6 [: y4 B5 E9 H8 w0 [pluripotency
# _& U) ~  k- l. }; D; I: j什么叫often maintenace ？2 u( m- A# ~: T
望那位高手解惑，谢谢！

tpwang

回复 懵懂干细胞 的帖子
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4 O8 j4 O. X# F( m; J1 ]$ u/ E9 ]6 Z把上下文一起贴出来，贴一个“段落”或起码一个句子。

懵懂干细胞

Self-renewal is the process by which stem cells divide to make more0 Z0 H8 O! ^  y; S+ h
stem cells, perpetuating the stem cell pool throughout life. Self-renewal* K% Y$ h2 n: N1 Q4 k( C5 R
is division with maintenance of the undifferentiated state. This re-
& K  f& N* p8 [1 Kquires cell cycle control and often maintenance of multipotency or
4 Y# y1 P0 O( |) p( \pluripotency, depending on the stem cell.
5 W8 Q$ r  x2 G/ Y+ |- h$ N3 o5 j麻烦帮忙看一下！谢谢了

tpwang

回复 懵懂干细胞 的帖子9 N: }: L/ w. L' \2 Q" K3 O

4 I- h2 S1 Q- w8 Z9 j( E3 t8 l7 j This requires cell cycle control and often maintenance of multipotency or pluripotency, depending on the stem cell.- m* M; i- u& W' e
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这一(自我更新)过程（的实现）要有对细胞周期的控制，并常涉及多能性的维持（mutipotency or pluripotency，根据不同的干细胞而定）。# o, |( h$ e  H$ O4 C6 E
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cell cycle control和maintenance of都是requires的宾语，often是用来修饰maintence的，意思是“往往”也需要（在自我更新过程中）维持多能性。$ f5 K& ^6 H1 {2 h% P$ Q

% K+ |9 m( Q6 U# W先把句型结构搞清楚了，理解就容易些了。这是个带两个并列宾语的结构。完全展开的话就是：1 q0 M8 \" ?# r& [

) T- n7 I0 x9 R, D* A5 ~: I5 bThis requires cell cycle contro, and often requires maintenance of multipotency or pluripotency (which depends on the stem cell types).

懵懂干细胞

高明！谢谢！！！！

懵懂干细胞

高明！谢谢！！！！