In heavy concentrations, ozone is irritating to the eyes, nose and throat.高浓度的臭氧会对眼睛、鼻子和咽喉有刺激作用。Large concentrations of capital were in the hands of merchants.大量资本集中在商人手里.The latest data showed that global ozone concentr...
Barium is found in some oilfield brines in concentrations greater than 100 mg / litre.在有些油田卤水中,钡的浓度大于100毫克/升.At lower concentrations they may even be stimulants of cell division.在浓度较低时,它们甚至能促进细胞分裂.Methods Three different...
玻璃加热后拉成了一根细管.The glass was heated and drawn out into a thin tube.血管是供血液流通的细管.Blood vessels are the narrow tubes through which your blood flows.热水受压流经这些细管, 使整个房间保持温暖.The hot water is pumped through these narrow pipes, so ...
The Doberman let out a string of roaring barks.短毛猎犬一阵狂吠。A string of five rowing boats set out from the opposite bank.5只划艇排成一行从对岸出发了。The landscape is broken only by a string of villages.这片风景中只有一排村庄。...
他的鞋子是用几段旧带子系的.His shoes were tied on with old bits of string.我们系的学生总共有几百人.The students of our department numbered in the hundreds.“ 你真该瞧瞧他系的那条领带." You ought to have seen the tie he had on....
The experiments of dephosphorization of hot metal by using converter slagflux were performed in the scale.研究了转炉渣剂的组成及相关工艺因素对铁水脱磷率的影响.The successive approximation converter is of medium speed, and average resolution.逐次逼近式...