男总裁被保镖c呻吟双腿大张bl,扒开学生双腿猛进入喷水小说,狠狠躁18三区二区一区,日本边添边摸边做边爱60分钟

SHZ-D系列循環(huán)水真空泵是在循環(huán)水多用真空泵的基礎(chǔ)上，根據(jù)實(shí)驗(yàn)室面積較小這一特點(diǎn)，參照日本臺(tái)式泵，一次性成型外殼，縮小體積改進(jìn)而成，具有體積小，重量輕，外型美觀等特點(diǎn)，雙表、雙頭抽氣,四表四抽頭，雙面相同的多用真空泵，即便于教師直觀演示，學(xué)生亦可在任意一面開機(jī)、關(guān)機(jī)。  

（1）本機(jī)采用雙抽頭，可單獨(dú)或并聯(lián)使用裝有兩個(gè)真空表。  

（2）新改進(jìn)防腐四抽頭，可單獨(dú)或并聯(lián)使用裝有四個(gè)真空表。  

（3）主機(jī)采用不銹鋼機(jī)芯和防腐材質(zhì)機(jī)芯兩種型號(hào)制造。  

（4）耐腐蝕、無污染、噪音低、移動(dòng)方便，還可根據(jù)用戶需要加裝真空調(diào)節(jié)閥。  

（5）可同時(shí)有四名學(xué)生進(jìn)行化學(xué)實(shí)驗(yàn)，縮小實(shí)驗(yàn)空間。  

Thepumpismadeonthebasisofcirculatingwatermultipurposevacuumpump,andinviewofthesmallspaceofthelab,andwithreferencetotheJapan-madebench-typepump,madewithreducedsizeandimprovement,andadoptingone-shotforming,ithasthefeatureofsmallsize,lightweightandbeautifulappearanceandsoon,ithasdouble-size-double-tapairextracting,4-size-4-tap,identicaldualsizemultipurposevacuumpump.Whiletheteacherisdemonstrating,studentscanalsoturningonoroffthemachineonanysizeofit.  

1.Itadoptsdualtaps,canbeusedindependentlyorinparallelcombination,with2vacuummeters.  

2.Newlyimprovedanticorrosionfourtapscanbeusedindependentlyorinparallelcombination,with4vacuummeters.  

3.Thehostmachinehastwomodels;oneismadewithstainlesssteelmoduleandtheotherwithanticorrosionmaterials.  

4.Itiscorrosionresistant,pollutionfreeandwithlownoise,andeasytomove,also,vacuum-adjustingvalvecanbeaddedaccordingtotheneedsofcustomers.  

5.Fourstudentscanconductchemicalexperimentssimultaneously,reducingexperimentspace.

SHZ-D系列循環(huán)水真空泵參數(shù)