在背板上主办单位和承办单位英语怎么说

以我的个人的经验来看是没蛋关系的
主要还 背板和eva的胶粘度得问题
在做组件之前都是要做粘结度试验的

Guitar is an instrument which is typically played by plucking or strumming,similar to the shape of the violin,usually six strings.Its soundboard and back are flat,while the body parts which also known as ribs are curved inside forming a concave.It has a really long neck connecting the soundboard and the headstock,The fretboard,also called the fingerboard has many metal strips embedded along it,which is known as 'frets',the pitch of each consecutive fret is defined at a half-step interval on the chromatic scale.Guitars are used to play a diversity of musical styles including pop music,rock music,blues,folk,flamenco.Guitar also was used in classical music,which has a big part of solo,and occasional use in chamber and orchestral.It usually has six strings,but there are four strings,strings eight,ten and twelve strings guitar.Guitars can be divided into two broad categories,firstly,the classical guitar which its tone is produced by the vibration of the strings,amplified by the body of the guitar,which acts as a resonating chamber.Electric guitars,introduced in the 1930s,use an amplifier that can electronically manipulate and shape the tone.Classical guitar is usually used to play classical music,folk music and popular music.While electric guitars are usually used to play rock music,blues and pop music.The invention of the electric guitar has an important influence on Western pop culture and music.

Orthopedic traction bed by bed and pose a stent can be conducted next backplane pack bed before dumping,dumping reversing,the frame legs,feet frame packs.Action item legs,legs foot frame to frame,feet together on the Folding Box ≥ 36 ° with physical frame outreach ≥ 25 ° angle throughout the bed up in peacetime should be smooth,There can be sloshing inequality.Bed before dumping,dumping reversing swing and the amount shall not be greater than 14 mm back frame,frame legs,feet frame between the height difference.shall not be greater than 4 mm.Swing back longitudinal frame shall not be greater than 16 mm.Lateral swinging back frame shall not be greater than 5 mm.Leg foot box frame with the vertical swinging shall not be greater than 16 mm.Turn back pack frame,handle starting torque shall not be greater than 3.4 fixation.Frame pack switch legs,butt starting torque shall not be greater than three fixation.Bed up in peacetime,the back end of the first frame 1 / 2 position,the downward force exerted 245N,legs,feet frame should not sitting with the phenomenon.Background Frame,frame legs and feet in the regulatory framework within movements should be smooth and without significant jitter and noise and other anomalies.the drive must not have permanent deformation.Scroll Lock is splayed,feet legs box frame were starting outreach rotary power of not more than 98 N.Locking wheel locking device,the frame legs foot frame outreach rotary power with no less than 78.4 N.From the cantilever boom in the first 600-mm vertical downward force exerted 392 N,cantilevered bar may not have permanent deformation.In the side of the frame is arbitrary vertical downward force exerted 980 N,the other side should not be sitting with the phenomenon.Hand bracket for (for the 83-bed orthopedic) :to shore up the hands shelves uniform 50 N static load,hand bracket for ptosis distance of not more than 30 mm,the removal of the load,should be able to place.Handle components :Chain of ouch,Festival and the Festival of fastness should be not less than 294 N Rally.Rally Central Wang Pin of shear force should be not less than 294 N.Related departments should be able to adjust length.Traction rod components :traction rod straight and should have sufficient mechanical strength and rigidity.Lock Locking devices should be reliable,solid,open cooperation,Lock should be flexible light.In traction poles flying 200 N mallets,the traction bar phenomenon is allowed to slide.Mallets should be smooth and level,weight,and in each of the mallets on the plane marked with the actual weight of a heavy hammer markings.Component parts to the quantity and species should be consistent with the provisions of Table 4,all accessories should facilitate the demolition,Lock should be reliable,and hard solid and durable.Orthopedic traction bed in a flat cement surface movement,rotating rack should be flexible,reliable Lock.Face-bed surface should be smooth and not a serious hurt,and none Kok phenomenon

除了白玻璃,其他东西那一样不是一门很高深的学问啊!建议你还是找其中一个工作环节来深入学习就够了

I will always love you until the day you don't love me or betray me
是背叛吧?