occur的例句（occur在句子中的用法）

• However, malignancies usually occur when fragments of these tumors are transplanted in other rats. 但如把此肿瘤的组织块移植于其他大鼠则经常表现出恶性.
• Perhaps the most serious problems occur in the stomach and intestines. 最严重的问题或许出现在胃和肠里.
• Most hurricanes occur before leaf drop and during or following heavy rains. 大多数飓风出现在落叶以前,暴雨之时或暴雨之后.
• Sharply outlined dikes, sills and bosses occur in numbers. 边界清楚的岩脉, 岩床及岩瘤等都常见.
• Upward - fining channels may occur in a wide range of environments, from submarine canyon to alluvial fan. 向上变细的水道可以出现在好多种环境中, 从海底峡谷到冲积扇.
• When you do not use summarization to assign IP addresses, problems occur. 问题出现在当你不使用摘要来分配IP地址时.
• Some occur in organisms without evoking symptoms. 一些存在于生物体中,但不发生症状.
• Transportation accidents resulting in radiation releases could occur, as could thefts by terrorists. 因放射物泄露而引起的运输事故可能会发生.
• Ulcers occur when the stomach's natural acids eat into the lining of the stomach. 胃酸侵蚀胃内壁引发溃疡。
• Some movement in the building will occur as It'settles into the subsoil. 楼房沉到下层土时,楼里就会有动静.
• Food spoilage problems occur with minimally processed, concentrated frozen citrus products. 食品的变质也发生在轻微加工的 、 浓缩冷冻的柑橘制品中.
• Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur. 一旦病患出现感染症状时,手术治疗是唯一的选择.
• Similar interconversions occur during the process of seed development and maturation. 在种子发育和成熟过程中出现同样的相互转变作用.
• Macroscopic deviations from isotropy occur due to bedding, schistosity and also sometimes fracturing. 与各向同性相差很大的情况往往产生于层理, 片理,某些时候则由于断裂所造成.
• A luteal phase defect may also occur. 也可能会出现黄体期不足.
• This could occur as a result of some structural instability or looseness in the shell. 当外壳产生某些结构不稳定或松动时,就能产生这种情况.
• Conjugates of protein and lipid occur as lipoproteins. 蛋白质和脂肪结合产生脂蛋白.
• Ingrown toenails usually occur in the big toe. 指甲内嵌通常发生在大拇指上.
• ...the inflammatory reactions that occur in asthma. 哮喘病出现的发炎反应
• A loss in volume will occur if infiltration takes place. 如果发生了渗润作用,水量就会减少.