Sound 響 room 駐 wave yan heavy, with Praxis measured volume empty between frequency rate 響 ying, in 60Hz near has a real drum package, with waveform production health device Sao description frequency rate, open to 60Hz around when, can is clear to Ting to room between maybe more items with earthquake begins to of Sheng sound, see up future is empty between 駐 wave of question problem, will must wants to Office method solutions duel. Please teach Mr Zhang 俠, he informed the speaker back walls of two lateral Sheng arc is very important, be sure to do, thinking about install Huang when he had money, was about whether or not to do Sheng arc between Judaism and Henan for a long time, finally decided to save money it's blunder. Up to now only two terms road, is a DIY, first posted by bought finished Sheng arc.

Go online, to study for a long time, Sheng arc as if very little of the finished product, only to see a one-fourth round, the surface is sound-absorbing material, rather than the hard quality, because if I beat the Standing wave, rather than absorbing, so this thing is not appropriate, leaving only two terms road, DIY or 訂 do. Woodworking Hobby this gadget boy to promote small, but there was no real right do to promote future over a motionless like East West model courses, if you do, be low Risk, 評 then you can use the following two kind of methods.

1. phenyl azide illegal, basically strips of wood one-fourth and after that round, a piece of phenyl azide up, coating stub between white adhesive plaster coating is constant, 優 bit is enough round, short little stub for free is FA material.

Phenyl azide

2. side of phenyl azide legal terms stored wood into long, width according to the distance round the vertical distance di reduce, between white adhesive plaster coating stub coating is constant, 優 bit is material labor, if B&Q bought the material, staff directly please work cut sizes, Fish Maw stub on the home only polished, short point is round.

Lateral surface of phenyl azide

Is two kind of method ju chess indefinite when, in Myav Shang found one 專 del Carmen do 擴 sanban of Wu Mr, TV said with he chat up future release now he 蠻 hot heart of, and main operating is open rent book shop, Deputy operating is woodworking, not 專 note main operating, Deputy operating must do have good, is meet Lab C3 not services are operating of spirit. I asked him to arc to do a little thick, explore Fort glass wool, he Ying all reply, yes the 訂 half 徑 30cm, Sheng arc of two meters high, containing paint and also set to leave the Pricing is very reasonable, no deposit, approximately 10th 貨. Originally thought this kind of further karma, and Mai Jia Ying this 貨 Userboxes/Time only for reference, surprisingly not too much infomation told Mr Wu Sheng received after the 10th arc've finished, this kind of 負 Ze spirit is not MTV alert will not work.

Gifts baiyi of lunch when between slipped class home waiting for, Wu old boss Qing since open car sent future, two real people Heli put Sheng arc moved to reviews Ting room, Sheng arc of work is not wrong, is 堅 solid, surface paint rose white of cement paint, with I room between inside of lily white milk adhesive plaster paint pigments color very close, eye difficult differentiation, 擺 good location 後 on like is original installation Huang of part, is full meaning to no, 貼 walls 擺 put when by in floor received bian and walls angle not vertical of question problem, need fuel ectonomc a little East West to 緊 貼 walls angle, first advises on with, over a 陣 child again with Silicon Lee Kang fixed's.