Serpentine often contains some asbestos , and should be used with caution .因为蛇纹石往往包含了一些石棉，收集时应谨慎。...serpentine woodland pathways.蜿蜒的林间小路The method is presented for preparation metasilicate pentahydrate from residue after...
他中学时不擅长代数.He was not good at algebra in middle school.在代数里, 符号X常用来表示未知数.In algebra, the sign X usually denotes an unknown quantity.他的同学们正在绞尽脑汁地演算初等代数题.His classmates were labouring with elementary algebra....
染色体破裂也可能引起倒位与易位.Chromosome breaks may also lead to inversions and translocations.用后期桥作为倒位杂合子性的指标.Anaphase bridges were used as indicators of inversion heterozygosity.疑有诱发倒位的雄性然后用于建立原种.The males suspected to have induced ...