An oil rig is a structure on land or in the sea that is used when getting oil from the ground. 1  Arabic: Ø¬ÙÙÙØ§Ø²Ù Ø§ÙÙØ­ÙÙÙØ±Ù Ø§ÙÙÙÙÙÙØ·ÙÙÙ. 2  Brazilian Portuguese: torre de perfuraÃ§Ã£o petrÃ³leo. 3  Chinese: ç³æ²¹é»å¡.  Croatian: platforma za podvodno 1  buÅ¡enje. Czech: vrtnÃ¡ souprava na ropu.  Danish: 1  boreplatform. Dutch: booreiland.
The critical organ for plutonium, radium, strontium, and many other fission products is bone and the adjacent bone marrow. For iodine, the critical organ is the thyroid gland. Insoluble airborne radioactive dust often settles in the alveoli of the lungs, while small colloidal particles may become...
The embryo is most susceptible to teratogenic agents. during periods of rapid differentiation. The stage of development of the embryo determines suscep-. tibility to teratogens. The most critical period in the development of an embryo or in the growth of a. particular organ is during the time of most rapid cell division. The critical period for each organ is. pictured below (Fig. 23-2). For instance, the critical period for brain growth and development is. from three to 16 weeks.