The sand , which is formed by dark green crystals called olivine , is brought to the surface by volcanic activity 这片绿沙由称为橄榄石的墨绿色结晶体形成，被火山活动带到地表。
Of the 83 cases , 75 ( 90 . 4 % ) showed that urinary crystals corresponded to the components of the urinary calculi 在这83例尿路结石病患中， 75例（ 90 . 4 % ）之尿液结晶体与尿路结石之成份相关。
Bacillus thuringiensis israelensis produce crystal proteins which can be converted into toxins in the gut of the mosquito larva 苏云金杆菌会产生蛋白质结晶体，而结晶体在蚊子幼虫的肠内化为毒素。
Bacillus thuringiensis israelensis produce crystal proteins which can be converted into toxins in the gut of the mosquito larva 苏云金杆菌会产生蛋白质结晶体，而结晶体在蚊子幼虫的肠内化为毒素。
It ' s made by fermenting corn , sugar beets or sugarcane to produce a white crystal that can be easily mixed with most foods 它是从发酵的玉米、甜菜或甘蔗中产生的白色结晶体，可以轻易和大多数其他食物混合。
Animals have to cope with and control physical and chemical processes that do not necessarily act to benefit of the animal 参考译文：在最复杂晶体中有二氧化硅的结晶体，二氧化硅在不同温度和压强下有7种不通结构,最常见的是石英。
Thus only very few ruby crystals were given the good conditions in which they could grow undisturbed to considerable sizes and crystallise to form perfect gemstones 只有极少数的结晶体能不受干扰地生成为无瑕疵的大颗粒红宝石。因此，
L is the initiator of liquid peroxide cyclohexanone , they are cold polyester resin curing the initiator . features : no crystallization of winter produce 引发剂l是液态过氧化环已酮，它们是聚酯树脂冷固化成型的引发剂。特点：冬天不会有结晶体产生。
Gout is caused by excessive uric acid crystals deposited in joints , tendons , kidneys and other tissues , where they cause considerable inflammation , swelling and damage 痛风起因于体内过多的尿酸结晶体积累于关节、腱、肾脏及其它的组织而引致发炎、红肿及损害。
This calibration is usually carried out by employing a double exposure technique in which the diffraction pattern and electron image of a crystal of molybdenum trioxide are successively exposed 这个标准通常利用使得衍射模型和一个三氧化钼的结晶体的电子成像成功展现的双投照技术来执行。
