有些生物分子呈螺旋状.Some biological molecules have the form of a helix.叶片呈螺旋状开略带紫色白花的北美紫菀.North American perennial with apparently whorled leaves and showy white purple - tinged flowers.欧洲兰花,花色雪白,总状花序较短、呈螺旋状.European orchid havin...
石油的储集是受从渗透到不渗透的岩相横向变化控制的.The accumulation of oilis governed by lateral changes from permeable to impermeable facies.妈妈教我渗透的科学原理.My mother taught me about the science of OSMOSIS.水冷式均质密封结构,克服了普通密封渗透的难题.Water - cool homogen...
He caught three hares, but one ran a mile.他逮了三只野兔, 跑了一只.He who follows two hares is sure to catch neither.追逐两只兔，两头都落空。When all birds are shot , the bow will be set aside ; when all hares are killed , the hounds will be s...
He lay on the beach, sifting the sand through his fingers.他躺在沙滩上用手筛砂子玩.I stood at the foot of the collapsed tower and watched the rescue workers sifting through the debris.我站在倒塌的高塔脚下，看着救援人员在瓦砾堆中搜寻。I was sifting the cinde...
Newborn calves are not afraid of tigers. -- Young people are fearless.初生之 犊 不畏虎.When two tigers fight , one is sure to lose.两虎相争,必有一伤.Lions and tigers are big game.狮子和老虎是大猎物....