!"#$%"&'(")*+
!"#$%#&'(#$')"#*+#&,-#./0#12඀
7'89&#:+#0';8#1<=$#./0#12&#sau#$>?#$%#&'(#@'%?#1<=$A#
$>?#&,<=&#'B2$#$>?#$%#:;"#.C#D#*+#&,-#1E8#F8G"#*H8#345#
IJ5#*K#"'<#&'9#IL#'!"#$'9#1M#3D#,M"N#$>?#$O?#345P
7,Q"#IR"
7,Q"#:S$#@G
7,TB#&,Q"#&<U"NA#1;B#"N<=$#VWE"N#'B2$#&'X"N#1Y"NA#
I>#FS"N#:M#./0#N'Z0#18#@[3P
\]^_#7`ab7#c`d#ef#7`g#
7`ba#\hi#j]ke
\<H8#&'B4&#@'-#$%#"'8CW#*+#&,-#./0#,40A#$'B#0'Z0#:!"#
$')"#N%$#&'B4&#@'-#&E8#<WP#e'l#*8G$#"/3#.<H8#&'B4&#@'-#
*R#VB?5#"%#$'B#19"#@'8#"%#&890# Vm$# *H8#18(3#Fn"N#
o3P
,"-" . /"0/123"4/5
i'-?#&,<H$
i'-?#I?W#I>#FS"N#:M#&'p"N#@'-#q&r5#$')"s
Quan" +6789:#e'l# I># FS"N# :M#./0# 12&# 1<=$# $'B#
0'Z0# I># FS"N# :D8# t.T$&,B.WV# $'B# 345# IJ5# $O?#
:!"P
u"N#V;# @'p"N#1<=$#FR8# vW4#w3#*R# 1<U"N# @-"'#
xyy33P
z9W#"E8#345#IJ5#*RB#'G#&'E"N#V;#$'W"NA#:!"#"Q"#
&'?3# @';B# .U8# @'W5Q"# *C# ?"# &BR"# $O?# "'R# I;"#
VWJ&P
4$;89" )<=#" &'(" )*+" máy" >?@" +6A89" +B" #$C8" $A*#"
($D89"8$E"F$;89"+$AG89"F$HI
z9W#:!"#I>#FS"N#:M#./0#12{#1<=$#$W"N#$J0#I|"A#.<H8#
I/&#&'B4&#@'-#D#0'}"#&,<H$#$O?#345#IJ5#0';8#1<=$#&'?5#
:~"N#"/0#&'B4&#D#0'-?#sau#345#IJ5P#z'#"'R"N#"o"N#
3D#.<H8#I/&A#I>#FS"N#FS"N#$S#"')"P#Sau#1%A#&'4B#"/0#D#
0'-?# sau# *R# NR8# "%# *RB# *+# &,-# .<H8# I/&# D# 0'}"# &,<H$P#
c'p"N#$}"#I>#FS"N#.<H8#&'B4&#@'-#@'8#I>#FS"N#:M#&'p"N#
@'-P
!"#$%#&'(#12&#:M#&'p"N#@'-#D#0'-?#sau#345#IJ5#1(#&';8#
@'-#.Q"#&,Q"#'B2$#,?#$4$#:Q"
e4$# 1}W# *RB# *R# &'B4&# @'-# $}"# F"N# @'p"N#@'-# &'p"N#
&'B4"N#1(# &,4"'#&K"'# &,!"N#vW4#"'8G&A# *K#&'(# 1;3# :;B#
,~"N#0';8#1O#&'p"N#&'B4"N#q$'X"N#'!"#"'<#3D#$>?#I#
'B2$#$>?#,?#"NBR8Ps
z9W#I>#FS"N#:M#&'p"N#@'-#*R#@'-#&';8#,?#"NBR8#0'"NA#
0';8#1;3#:;B#1O#&'p"N#&'B4"N#1(#&,4"'#F"N#@'-#&,R"#
"N<=$#*RB# &n#"'"N# &'89&#:+#"'8G&# @'4$A#:?B# N3#$;#
"N)"# .>?#1?"N# $'45A# @'8#I># FS"N# 345#IJ5P# j8CW#"R5#
@'p"N#&'(#40#FS"N#@'8#*8#&'p"N#@'-#'<H"N#,?#$>?#I#
3DP#c'-# &';8#@'p"N# 1<=$#&';8# *RB#E"N# @'%8#1<=$# I>#
FS"N#1(#&';8#@'%8#&n#$4$#&'89&#:+#"JW#N?I#'B2$#"'8Q"#.8GW#
@'4$P
j_g#
j_g#a
dòng không khí
dòng không khí
z#7z
j_#e`z`
z`_7#j
qe%#D#3BFT.#
.a#$')"#"'8GMs
7#7z
qe%#D#3BFT.#
.a#$')"#"'8GMs
qe%#D#3BFT.#
.a#$')"#"'8GMs
z7#j_#e`z`
7`_#_z
z7#
e#z#7az
ebe#e`z
\]^_#7`ab7#c`d
JK89"+L8:
!"# $%# &'(# 1;B# "N<=$# :;"N# &Q"# @'8# :!"# 3WE"# .M"#
"N<=$#345#IJ5#*R#./0#*RB#&<U"NP
>#FS"N#$p"N#$S#&'-$'#'=0#q*-#FS#"'<#3M&#FS"N#$S#I/&#
:Z"sP
c'p"N# VZ# :;"N# &Q"# ,?# @'8# :;"N# 18CW# @'8("A# $'l# 1;B#
"N<=$#*R#./0#.!8P
22