A house built from living tree roots that provides natural against earthquakes?在可以自然抗震的活着的树根里建房?The cattle precautions against earthquakes most shed!最牛防震棚!The building standards in California require against earthquakes....
Light fittings with metal parts should always be earthed.有金属部件的照明装置都应该走地线。He carefully earthed up the roots of the newly - planted tree.他仔细地在新栽的树的根部培上土.It is desirable that compensating cables be run in earthed conduit.补...