锟秸氾拷臏囟群锟斤拷锟斤拷锟(du锟斤拷)锟斤拷锟斤拷锟接绊懠锟斤拷|(zh锟斤拷)锟斤拷锟斤保锟斤拷锟斤拷锟揭拷锟斤拷锟街锟斤拷锟截濓拷鹊锟阶冿拷锟街憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷品锟斤拷锟斤拷锟斤拷?c锟斤拷)诃h(hu锟斤拷n)锟斤拷锟斤拷锟斤拷锟叫o拷锟斤拷(du锟斤拷)锟斤拷锟斤拷锟接帮拷锟斤拷锟秸憋拷锟斤拷直锟接碉拷锟锟斤拷諝锟斤拷械锟斤拷泻锟斤拷锟斤拷w使锟斤拷锟斤拷?ji锟斤拷n)锟斤拷械慕Y(ji锟斤拷)锟斤拷(g锟斤拷u)锟解到锟狡夛拷锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷越锟斤拷(l锟斤拷i)越锟杰碉拷锟剿濓拷锟节碉拷锟斤拷锟絳锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟絕锟节憋拷锟斤拷r(sh锟斤拷)锟节硷拷锟絴(zh锟斤拷)锟斤拷锟斤儲(ch锟斤拷)锟截癸拷锟叫★拷h(hu锟斤拷n)锟斤拷锟斤拷锟斤拷锟姐工锟斤拷锟斤拷
锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟狡凤拷斜锟斤拷锟斤拷锟锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷f锟斤拷(sh锟斤拷)锟斤拷(hu锟斤拷)锟斤拷锟脚硷拷锟狡憋拷锟斤拷锟絥锟斤拷锟侥曪拷(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷片锟酵革拷锟斤拷锟斤拷锟斤拷锟叫碉拷锟侥硷拷锟斤拷锟侥曪拷(sh锟斤拷)锟斤拷锟斤拷(b锟斤拷o)锟斤拷锟斤拷锟脚猴拷锟斤拷锟斤拷锟斤拷锟叫囷拷(gu锟斤拷)锟斤拷锟統(t锟斤拷ng)锟侥伙拷藝锟絞(sh锟斤拷)锟侥結(ji锟斤拷)锟斤拷锟斤拷锟斤拷要?d锟斤拷)v史锟侥獻(xi锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷(du锟斤拷)锟截濓拷鹊锟揭拷锟揭诧拷锟斤拷锟斤拷(y锟斤拷n)锟斤拷锟斤拷锟节诧拷锟斤拷锟絕锟斤拷(ch锟斤拷)锟截癸拷锟叫硷拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷锟揭拷锟斤拷锟斤拷诤锟截猴拷锟侥條锟斤拷锟铰o拷锟斤拷锟斤拷锟斤拷锟絟(hu锟斤拷n)锟斤拷锟侥干擾锟斤拷锟截度的猴拷锟竭猴拷锟斤拷锟斤拷锟斤拷(hu锟斤拷)锟斤拷(d锟斤拷o)锟斤拷锟絯锟絊锟絴(zh锟斤拷)锟截凤拷锟斤拷(f锟斤拷)锟杰燂拷脹锟斤拷s锟斤拷锟絘(ch锟斤拷n)锟斤拷變锟斤拷锟斤拷锟斤拷锟斤拷之锟絞锟絘(ch锟斤拷n)锟斤拷锟洁互摩锟斤拷锟斤拷使锟斤拷(qi锟斤拷ng)锟饺斤拷锟酵★拷锟斤拷锟斤拷沫h(hu锟斤拷n)锟斤拷锟斤拷(hu锟斤拷)使锟斤拷锟斤拷變锟斤拷锟斤拷锟絣(f锟斤拷)锟斤拷水锟斤拷锟斤拷同锟絩(sh锟斤拷)還锟斤拷(hu锟斤拷)使锟斤拷水锟皆诧拷锟斤拷锟斤拷E墨锟紼锟絣(f锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷色锟斤拷模锟斤拷锟斤拷锟斤拷锟斤拷锟絤锟剿的溫濓拷瓤锟斤拷锟斤拷泳锟斤拷锟斤拷锟斤拷匣锟阶冿拷|(zh锟斤拷)锟斤拷锟斤拷锟斤拷锟絰(ch锟斤拷ng)霉锟斤拷锟斤拷锟斤拷锟斤拷锟絃(zh锟斤拷ng)锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷谋锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷L(zh锟斤拷ng)锟节憋拷锟斤拷锟节筹拷锟斤拷沫h(hu锟斤拷n)锟斤拷锟叫o拷锟斤拷锟斤拷品锟叫碉拷锟絯锟絊锟斤拷還锟斤拷(hu锟斤拷)锟絣(f锟斤拷)锟斤拷水锟斤拷锟斤拷使锟斤拷锟斤拷锟侥忥拷(qi锟斤拷ng)锟斤拷锟铰斤拷锟斤拷锟斤拷锟斤拷锟较碉拷锟斤拷锟紼锟斤拷色锟斤拷也锟斤拷(hu锟斤拷)锟絣(f锟斤拷)锟斤拷失锟絲锟斤拷锟斤拷色锟斤拷模锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟斤拷锟斤拷?zh锟斤拷)锟斤拷诔锟斤拷锟酵灰塵锟絟(hu锟斤拷n)锟斤拷锟叫時(sh锟斤拷)锟斤拷锟揭塵锟叫碉拷锟絯锟斤拷锟酵硷拷锟斤拷锟斤拷锟斤拷l(f锟斤拷)锟斤拷摩锟斤拷锟斤拷影锟斤拷锟斤拷E锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絘(ch锟斤拷n)锟斤拷锟斤拷锟解,锟斤拷锟斤拷锟剿硷拷锟斤拷锟斤拷锟斤拷A锟斤拷锟斤拷锟叫碉拷水锟斤拷a(ch锟斤拷n)锟斤帶锟叫诧拷锟斤拷锟斤拷使锟斤拷锟斤拷锟絣(f锟斤拷)锟斤拷锟斤拷锟結(ji锟斤拷)锟斤拷锟斤拷锟絤锟斤拷(d锟斤拷ng)?sh锟斤拷)臏囟群蜐锟斤拷還锟斤拷(hu锟斤拷)使锟斤拷锟斤拷锟絃(zh锟斤拷ng)锟斤拷锟斤拷锟絅霉锟斤拷锟斤拷锟截濓拷鹊锟阶冿拷锟竭锟斤拷(hu锟斤拷)影響硷拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷N锟侥程度★拷锟斤拷(sh锟斤拷)锟斤拷(hu锟斤拷)锟侥組锟缴诧拷锟斤拷锟斤拷锟叫機(j锟斤拷)锟絯锟絊锟斤拷品锟斤拷锟斤拷(du锟斤拷)锟截度碉拷變锟斤拷锟截別锟斤拷锟斤拷锟斤拷锟截度革拷锟斤拷锟斤拷锟叫锟斤拷锟斤拷锟斤拷锟絤(x锟斤拷)锟絩(sh锟斤拷)锟斤拷锟絕(gu锟斤拷)锟絃(zh锟斤拷ng)锟絩(sh锟斤拷)锟斤拷锟斤拷(sh锟斤拷)锟斤拷(hu锟斤拷)锟酵曪拷(hu锟斤拷)锟秸縮锟斤拷锟斤拷锟斤拷锟斤拷變锟轿★拷锟截度革拷锟斤拷锟斤拷却锟絫锟秸氾拷锟叫的活潑锟斤拷锟斤拷水锟斤拷锟解化锟较筹拷锟絧锟斤拷锟斤拷(hu锟斤拷)锟斤拷锟斤拷锟絯锟絊锟截的分解,锟斤拷(du锟斤拷)锟斤拷(sh锟斤拷)锟斤拷(hu锟斤拷)锟侥損锟斤拷锟斤拷锟斤拷
锟斤拷耍锟斤拷锟斤拷C锟斤拷锟斤拷锟絕锟斤拷(ch锟斤拷)锟截癸拷锟(n锟斤拷i)锟斤拷锟絟(hu锟斤拷n)锟斤拷锟斤拷睾锟斤拷(du锟斤拷)锟斤拷锟給(h锟斤拷)锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟角非筹拷锟斤拷要锟侥★拷锟斤拷锟斤拷锟节硷拷锟絴(zh锟斤拷)锟斤拷锟斤保锟斤拷锟斤拷O(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟侥诧拷锟叫業(y锟斤拷)锟斤拷(y锟斤拷ng)锟斤拷锟絕锟斤拷膬煽锟絘(ch锟斤拷n)品锟斤拷锟斤拷锟給(w锟斤拷)水锟斤拷锟斤拷毓锟酵猴拷睾锟斤拷锟截癸拷锟斤拷锟給(w锟斤拷)水锟斤拷锟斤拷毓锟街伙拷锟斤拷{(di锟斤拷o)锟截濓拷锟锟斤拷锟斤拷要锟斤拷锟节冿拷(ch锟斤拷)锟斤拷锟街拷(hu锟斤拷)锟脚硷拷锟叫機(j锟斤拷)锟絴(zh锟斤拷)锟(l锟斤拷i)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷睾锟斤拷锟截柜,匡拷锟斤拷锟絳(di锟斤拷o)锟截溫度濓拷龋锟斤拷锟斤拷詢锟(ch锟斤拷)锟截革拷锟(l锟斤拷i)锟斤拷锟斤拷锟斤拷
锟給(w锟斤拷)水锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷艿锟截柜,癸拷锟絯锟斤拷锟缴冿拷(y锟斤拷u)锟絴(zh锟斤拷)鋼帮拷_锟斤拷锟桔忥拷锟斤拷锟接讹拷锟缴o拷锟斤拷锟斤拷锟斤拷锟絕處锟斤拷锟斤拷锟斤拷锟结)
一锟斤拷锟斤拷锟絞(sh锟斤拷)規(gu锟斤拷)锟斤拷 HYXD-1280KS
1)锟斤拷叽锟(W*D*H)锟斤拷W1500*H800*D1800mm
2)锟斤拷(n锟斤拷i)锟竭达拷(W*D*H)锟斤拷 W1400锟斤拷H700锟斤拷D1200mm
3)锟斤拷锟絋(m锟斤拷n)锟斤拷式锟斤拷锟杰碼锟絠4锟絋(m锟斤拷n)
4)锟斤拷锟(n锟斤拷i)锟斤拷锟絞锟斤拷锟斤拷锟截o拷锟斤拷铣锟斤拷锟30KG锟斤拷锟接帮拷锟斤拷锟50KG锟斤拷
5)锟絶锟斤拷電夛拷锟斤拷AC220V 50Hz锟斤拷
6)锟斤拷值锟斤拷锟绞o拷1200W 锟斤拷值锟斤拷200W锟斤拷
7)锟斤拷锟絯锟斤拷锟斤拷锟絟(hu锟斤拷n)锟斤拷锟截度凤拷锟斤拷锟斤拷0锟斤拷-40锟斤拷锟斤拷
8)锟斤拷锟絯锟斤拷锟斤拷锟絟(hu锟斤拷n)锟斤拷锟斤拷确锟斤拷锟斤拷锟10%-90%RH锟斤拷
9)锟斤拷锟絯锟紺锟较控濓拷瓤锟斤拷{(di锟斤拷o)锟斤拷5%-90%RH锟斤拷
10)锟斤拷瓤锟斤拷品锟斤拷锟斤拷锟斤拷锟2%锟斤拷
11)锟斤拷炔锟斤拷锟(d锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷5%RH锟斤拷
12)锟斤拷锟絯锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟矫猴拷取锟1mm锟斤拷(y锟斤拷u)锟絴(zh锟斤拷)锟斤拷锟斤拷锟锟斤拷
13)锟斤拷锟铰凤拷锟絯式锟絆(sh锟斤拷)計(j锟斤拷)锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟矫碉拷锟杰凤拷锟斤拷锟斤拷锟斤拷锟絯锟阶诧拷锟絆(sh锟斤拷)锟斤拷锟絝(w锟斤拷n)锟津帶剎車(ch锟斤拷)锟絖輪锟斤拷锟斤拷(j锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷锟絃(zh锟斤拷ng)锟絩(sh锟斤拷)锟絞使锟矫诧拷锟斤拷锟絊锟斤拷
14)锟斤拷锟斤拷锟斤拷锟杰o拷锟斤拷锟斤拷去锟斤拷锟斤拷锟(n锟斤拷i)锟秸氾拷锟叫的硷拷醛锟斤拷锟斤拷锟斤、锟絔锟絣(f锟斤拷)锟斤拷锟叫機(j锟斤拷)锟斤拷葘锟(du锟斤拷)锟斤拷锟斤拷锟叫猴拷锟斤拷锟絴(zh锟斤拷)锟斤拷
15)锟斤拷锟斤拷系锟統(t锟斤拷ng)锟角猴拷锟芥儲(ch锟斤拷)锟斤拷暮锟斤拷锟较碉拷y(t锟斤拷ng)锟斤拷锟斤拷微锟斤拷X系锟統(t锟斤拷ng)锟斤拷锟狡癸拷锟斤拷锟斤拷锟絝(xi锟斤拷)锟絳(di锟斤拷o)锟斤拷锟街诧拷锟絞锟斤拷膶锟斤拷锟斤拷锟秸氾拷注锟诫到锟斤拷锟絯锟斤拷(n锟斤拷i)锟斤拷锟侥讹拷锟斤拷锟紺锟斤拷锟絯锟侥冿拷(n锟斤拷i)锟斤拷缺锟斤拷锟斤拷锟斤拷锟侥匡拷锟(bi锟斤拷o)值锟斤拷
16)锟斤拷锟矫嗭拷片锟紺(j锟斤拷)锟斤拷锟斤拷LCD液锟斤拷锟紷示锟斤拷锟斤拷锟斤拷锟杰涳拷锟较碉拷y(t锟斤拷ng)锟斤拷锟斤拷膜锟斤拷锟絀锟斤拷锟缴查看锟絆(sh锟斤拷)锟戒工锟斤拷锟斤拷B(t锟斤拷i)锟斤拷锟斤拷(sh锟斤拷)锟絩(sh锟斤拷)锟截濓拷葦锟(sh锟斤拷)值锟斤拷锟絆(sh锟斤拷)锟斤拷目锟斤拷(bi锟斤拷o)锟斤拷葦锟(sh锟斤拷)值锟斤拷锟斤拷息锟斤拷
17)锟斤拷锟斤拷锟斤拷锟矫的氾拷锟斤拷锟皆和憋拷锟斤拷锟斤拷锟斤拷锟斤拷
1).锟斤拷锟斤拷{(di锟斤拷o)锟斤拷 锟斤拷锟斤拷:5%-90%锟斤拷锟斤拷锟饺o拷锟斤拷3%RH锟斤拷锟秸诧拷锟斤拷(d锟斤拷ng)值:锟斤拷8%
3).锟斤拷水锟斤拷式 锟节濓拷瘸锟斤拷^(gu锟斤拷)40锟斤拷锟侥環(hu锟斤拷n)锟斤拷锟斤拷锟斤拷锟皆勶拷(d锟斤拷ng)锟侥达拷锟絟(hu锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷水锟街憋拷锟斤拷锟斤拷锟斤拷水锟斤拷锟斤拷锟斤拷锟节濓拷鹊锟斤拷锟40%锟絟(hu锟斤拷n)锟斤拷锟叫o拷锟皆庯拷水锟斤拷锟剿伙拷慰杀锟斤拷C锟斤拷锟斤拷3锟斤拷(g锟斤拷)锟斤拷锟斤拷S锟給(h锟斤拷)锟斤拷
4)锟斤拷水锟斤拷式 锟絆(sh锟斤拷)锟斤拷锟皆勶拷(d锟斤拷ng)锟斤拷水锟斤拷锟斤拷l(f锟斤拷)锟节达拷锟斤拷锟锟斤拷锟給(w锟斤拷)液锟紹(t锟斤拷i)水锟斤拷锟斤拷
5)锟斤拷锟斤拷锟斤拷锟斤拷 锟斤拷锟斤拷去锟斤拷锟斤拷锟(n锟斤拷i)锟秸氾拷锟叫的硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絔锟絣(f锟斤拷)锟斤拷锟叫機(j锟斤拷)锟斤拷葘锟(du锟斤拷)锟斤拷锟斤拷锟叫猴拷锟斤拷锟絴(zh锟斤拷)锟斤拷
7)使锟矫環(hu锟斤拷n)锟斤拷 0锟芥~45锟斤拷锟斤拷5%RH-80%RH; 220VAC锟皆锟斤拷
8)锟斤拷锟絙锟斤拷锟姐、锟絗锟斤拷锟斤拷锟斤拷锟矫o拷锟斤拷锟斤拷锟斤拷之锟絞锟絔(m锟斤拷i)锟斤拷锟斤拷露锟斤拷锟斤拷鋼硷拷锟斤拷锟斤拷锟斤拷锟饺√庯拷锟斤拷冒锟斤拷锟斤拷c锟絠锟結(ji锟斤拷)锟较的橈拷(g锟斤拷u)锟斤拷锟結(ji锟斤拷)锟较緊锟杰★拷锟酵革拷锟皆★拷
18)停電憋拷锟斤拷锟斤拷锟斤拷锟斤拷 停電猴拷锟斤拷48H-72H锟斤拷(n锟斤拷i)锟斤拷缺锟斤拷锟60%锟斤拷锟斤拷锟斤拷
19) 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絯源锟斤拷 锟斤拷(du锟斤拷)锟斤拷锟斤拷谋锟斤拷o(h锟斤拷)锟斤拷锟铰撅拷锟斤拷蹮幔拷@锟斤拷锟斤拷太锟(y锟斤拷ng)锟斤拷锟斤拷锟斤拷锟杰筹拷锟斤拷锟街拷(hu锟斤拷)锟斤拷锟斤拷變锟轿囷拷(y锟斤拷n)锟斤拷锟斤拷锟斤拷锟皆o拷锟揭傦拷锟截別锟絆(sh锟斤拷)計(j锟斤拷)锟斤拷锟斤拷锟侥J锟斤拷锟斤拷锟斤拷锟矫換锟斤拷锟絯锟斤拷(n锟斤拷i)锟斤拷锟斤拷锟角筹拷锟斤拷諝锟锟斤拷锟角碉拷锟杰筹拷锟侥憋拷锟斤拷锟給(h锟斤拷)锟街拷(hu锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(n锟斤拷i)锟斤拷锟侥濓拷锟侥冿拷(n锟斤拷i)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟(du锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷驯锟斤拷o(h锟斤拷)锟斤拷锟矫★拷
20)锟斤拷系锟統(t锟斤拷ng)輪锟斤拷锟矫換輸锟斤拷锟斤拷锟斤拷锟斤拷w锟斤拷使锟斤拷锟斤拷锟绞斤拷锟斤拷锟斤拷锟絯锟斤拷锟皆诧拷锟絞锟斤拷輸锟斤拷锟斤拷锟矫換锟斤拷锟斤拷锟斤拷锟斤拷锟絯锟斤拷(n锟斤拷i)锟侥濓拷葼锟紹(t锟斤拷i)锟斤拷(w锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟斤拷小锟斤拷锟斤拷锟斤拷锟斤拷锟侥o拷K锟斤拷锟絖(k锟斤拷i)锟絋(m锟斤拷n)锟絇(gu锟斤拷n)锟絋(m锟斤拷n)模式锟斤拷锟斤拷鹊牟锟斤拷锟(d锟斤拷ng)锟皆很达拷锟斤拷锟斤拷锟斤拷(w锟斤拷n)锟斤拷锟斤拷
21)锟斤拷瓤锟斤拷锟侥o拷M锟酵癸拷锟絯锟斤拷6锟斤拷锟斤拷锟较革拷锟絰锟斤拷锟斤拷锟紺锟节凤拷锟接篩锟斤拷锟斤拷锟絕(gu锟斤拷)锟斤拷锟叫的加滐拷锟絕(gu锟斤拷)锟教猴拷锟斤拷锟絯锟斤拷(n锟斤拷i)锟斤拷锟斤拷锟斤拷锟斤安全锟斤拷锟絰锟斤拷锟斤拷锟斤拷(hu锟斤拷)锟斤拷锟紽(xi锟斤拷n)锟轿何岋拷(du锟斤拷)锟斤拷锟斤拷牟锟斤拷锟接绊憽锟
22)锟斤拷锟斤拷模锟組锟斤拷锟絆(sh锟斤拷)锟斤拷锟斤拷模锟終锟斤拷锟絆(sh锟斤拷)計(j锟斤拷)锟斤拷锟絊锟給(h锟斤拷)锟絊锟睫很凤拷锟姐,锟斤拷锟斤拷5-10锟斤拷锟锟斤拷锟斤拷要锟斤拷(du锟斤拷)锟阶損锟斤拷锟組(j锟斤拷n)锟叫革拷锟铰o拷只锟角诧拷锟絙锟斤拷锟絯锟捷絲锟斤拷锟酵匡拷锟皆岋拷锟斤拷锟斤拷系锟統(t锟斤拷ng)锟斤拷锟斤拷锟斤拷锟截廠全锟斤拷S锟給(h锟斤拷)锟锟斤拷锟斤拷锟街憋拷訐Q锟铰★拷锟斤拷锟斤拷锟斤拷(ji锟斤拷n)锟斤拷锟斤拷
锟絰锟戒:锟斤拷锟絰锟竭讹拷锟斤拷锟矫匡拷锟皆岋拷(sh锟斤拷)锟叫旓拷(sh锟斤拷)锟斤拷(j锟斤拷)锟芥儲(ch锟斤拷)锟斤拷锟絊锟絩(sh锟斤拷)锟介看锟斤拷全锟教匡拷锟斤拷锟斤拷锟斤拷锟斤拷App锟絆(ji锟斤拷n)锟斤拷锟斤拷锟斤拷锟叫岋拷(du锟斤拷)锟斤拷(sh锟斤拷)锟斤拷(j锟斤拷)锟組(j锟斤拷n)锟斤拷锟斤拷锟斤拷系锟統(t锟斤拷ng)锟斤拷锟斤拷锟斤拷485通訊锟絝(xi锟斤拷)锟絟锟斤拷
锟斤拷铣锟斤拷锟30KG锟斤拷8锟斤拷o(w锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絰/锟接帮拷锟斤拷锟50KG 6锟斤拷式