... nhị hỗn:
t
t
bc
a
=
++
0
110/ 0
(mm)
Trong ẵĩ :
t
0
: Chiậu dĂy lỷ thuyặt
t
0
= PD/(2Ke + P) (mm).
P : p suảt tẽnh ton (MPa) ẵừỡc qui ẵnh ờ 5.1.2.
D : ừộng kẽnh ngoĂi (mm).
K : ửng ... chuán viẻt nam tcvn 6259 -8 E : 2003
qui phm phàn cảp vĂ ẵĩng tĂu bièn vị thắp
PhÃn 8e tĂu chờ xỏ hĩa chảt nguy hièm
Rules for the Classification and Constr...
... with, presenting a compli-
cated chicken-and-egg problem. For if sex-segregated play groups fill a
need for predictable play and interaction styles, they are also a poten-
tial site for the production ... towards same-sex groups in these settings,
they often maintain prior cross-sex friendships formed outside the in-
stitution (Howes 1988). It is important to note that the preference for
same-...