龟裂现象 meaning in English

crack performance

( 4 ) it is the largest area of the danxia landfonn of the northwest of the yunnan province in china . there are three landscape areas include liming scenery spot , luoguqing scenery spot and shibaoshan scenery spot . it takes three scenery spots as a action research for analysis of the zig - zag pattern caused by joints , weathering , tectonic activity and magma activity
第四，针对中国最大的丹霞地貌分布区?滇西北，以黎明黎光、罗古箐、石宝山丹霞地貌景区进行实证研究，初步分析了滇西北丹霞地貌发育的特点?大面积的龟裂现象主要由两组节理和风化作用形成的，构造、岩浆活动也对龟裂的形成起了一定作用。
Best concentration of ions is 1 . 5mol / l and dispersant pvp monomer 0 . 8mol / l . spin - coating speed , which affected the quality of limn2o4 film greatly , was also studied . it demonstrated that smooth limn2o4 film without cracks could formed under 2000 rotates / min with the solution cion = 1 . 5mol / l , cpvp = 0 . 8mol / l , what ’ s more , fewest spin - coating times were needed at that speed
实验结果表明:采用离子总浓度溶液为1 . 5mol / l ,聚乙烯吡咯烷酮单元浓度为0 . 8mol / l的溶液旋转涂覆时,转速在2000转/分钟时最佳,所得到的湿limn204薄膜平整光滑均匀,加热后无龟裂现象。