of or on the left; "a sinistral gastropod shell with the apex upward has its opening on the left when facing the observer"; "a sinistral flatfish lies with the left eye uppermost"
preferring to use left foot or hand or eye; "sinistral individuals exhibit dominance of the left hand and eye"
例句与用法
1.
Sinistral strike - slip faults along the southern alashan margin and eastwards extending of the altun fault 阿拉善地块南缘的左旋走滑断裂与阿尔金断裂带的东延
2.
In experiments ， an injection of cytoplasm from dextral eggs changes the pattern of sinistral eggs ， but an injection from sinistral eggs does not influence dextral eggs 用取自左旋卵子的细胞质进行的注射却不能影响到右旋卵子。
3.
In experiments ， an injection of cytoplasm from dextral eggs changes the pattern of sinistral eggs ， but an injection from sinistral eggs does not influence dextral eggs 在实验中，用取自右旋卵子的细胞质进行的注射，可改变左旋卵子的模式；用取自左旋卵子的细胞质进行的注射却不能影响到右旋卵子。
4.
Especially interesting is the serpentinous peridotite in this belt occurred as lense blocks of various sizes , and superimposed with other geological masses with faults , and in combine to constitute the mixture . system in the belt . five tectonic stage can be discerned in this area : ( 1 ) south - north ward overthrust ; ( 2 ) sinistral strike - slip ( 3 ) dextral strike - slip ( 4 ) south - north ward overthrust ( 5 ) northeast , northwest late stage fault 本区上述的结构构造特征先后经历了五期构造作用，依次为： ( 1 )南北向逆冲推覆； ( 2 )左行走滑； ( 3 )右行走滑； ( 4 )南北向挤压推覆； ( 5 )北东向、北西向晚期断裂；
5.
Jiyang depression is a field where nonhydrocarbon is rich . these resources have close relation with the activities of the volcanos . at the same time , the activities of volcanos have deep contact with the activities of the faults . the growth of the faults in jiyang depression is great . by the research of the index number of the faults growth and the other researches , nw direction faults are the most ones in mesozoic , nw and ne and approximately ew directions all exist in cenozoic . the above reflects the whole geotectonic background that sinistral shearing stress field exists in mesozoic , but dextral shearing stress field exists in cenozoic 这些气藏与火山活动有密切的成生关系，同时火山活动与断裂活动也有密切的关系。济阳坳陷内断裂活动极为发育，通过断层生长指数等的分析，推断中生代断裂以北西向为主，新生代则兼有北西向北东向和近东西向的断裂，上述断裂发育特征反映了该区的大地构造背景，在中生代是左旋的剪切应力场，在新生代则是右旋的剪切应力场。
6.
Based on the analyses of structural features , volcanic activities , sequence construction and so on , it is believed that liaohe basin has experienced the period of dextral transtensional stress field in late jurassic - early cretaceous , middle and late paleocene , late eocene , miocene , and also the period of sinistral compresso - shear stress field in late cretaceous , early paleocene , early and middle eocene , oligocene , pliocene 对构造现象、火山活动、层序充填型式等多种实际资料的分析表明：辽河盆地经历了侏罗纪末白垩纪早期、古新世中后期、始新世中后期、中新世等右旋张扭应力场作用阶段，以及白垩纪晚期、古新世初期、始新世早中期、渐新世、上新世以来等左旋压旋应力场作用阶段。
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