Novelty intumescent flame retardant ( IFR ) was made from phosphoric acid, pentaerythritol and melamine.使用磷酸 、 季戊四醇、三聚氰胺合成了一种膨胀型阻燃剂.Glass reinforced high performance polyamide resin, with a non - halogenated flame retard...
The house was set amid dense trees and surrounded by an electrified fence.那座房子坐落于茂密的树林中，四周布有带电围栏。The wonderful performance electrified audiences.精彩的表演令观众兴奋不已.The national railway system has nearly all been electrified.全国...
戈德史密斯修理了屋顶，以确保房屋能够抗风。Goldsmith has repaired the roof to ensure the house is wind-proof.很快，整个武装部队开始公然抗命。Soon the entire armed forces were in open revolt.公民抗命，不管是暴力还是非暴力的，都是故意犯法。Civil disobedience, violent or non-violent, ...
He had three minors this semester.这学期他有三门副修科目.A student will probably attend four or five courses during each semester.每个学生一学期可能要修四五门课程.Each student is expected to wait at table for one week each semester.每学期每个学生都要在餐厅服务一...