Thanatophoric dysplasia (TD) is the most common form of lethal neonatal dwarfism with micromelic shortening of the limbs, macrocephaly, platyspondyly, and reduced thoracic cavity.
摘要致死性畸胎是最常见的致死性新生儿侏儒症其特点为短小的四肢、小胸、巨头及脑部发育异常等。
| 单词 | TD50 |
| 释义 |
TD50
英语例句库
Thanatophoric dysplasia (TD) is the most common form of lethal neonatal dwarfism with micromelic shortening of the limbs, macrocephaly, platyspondyly, and reduced thoracic cavity. 摘要致死性畸胎是最常见的致死性新生儿侏儒症其特点为短小的四肢、小胸、巨头及脑部发育异常等。 The TD series electric which is made of straining sensor and microkit has the funcion of wiping offtare,addingup weight,giving an alarm of hitch amd calculating. TD系列电子天平是由应变式传感器与微机组合而成的电子天平。具有去皮重、累计称量、故障报警、计数等功能。
原声例句
AP 听力 2013年4月合集 Across town the Bruins welcomed the Pittsburgh Penguins to the TD Garden. 同时，花园球场上棕熊队迎战匹兹堡企鹅队。 经济学人（汇总） Charles Schwab, America's biggest discount broker, struck a $26bn deal to acquire TD Ameritrade, a rival. 美国最大的折扣经纪商嘉信理财(Charles Schwab)以260亿美元收购竞争对手德美利证券(TD Ameritrade)。 经济学人（汇总） Ameritrade joined forces with TD Waterhouse, the discount-broking arm of Canada's Toronto-Dominion Bank, in 2006. 2006年，Ameritrade与加拿大多伦多道明银行旗下的折扣经纪公司TD Waterhouse合并。 经济学人（汇总） On November 25th came a truce, and surrender: Schwab agreed to buy TD Ameritrade for $26bn in shares. 嘉信理财同意以260亿美元的价格收购德美利证券。 经济学人（汇总） That of its big rival, TD Ameritrade, suffered more, plunging by a quarter. TD Ameritrade followed in eliminating commissions two days later. 其最大的竞争对手德美利证券的损失更大，其股价下跌了四分之一。在两天后德美利证券也取消了佣金。 CRI在线 2023年8月合集 In sports, Chinese strawweight champion Zhang Weili defeated Amanda Lemos in a UFC title bout at Boston's TD Garden this weekend. 体育方面，本周末，在波士顿 TD 花园举行的 UFC 冠军赛中，中国草量级冠军张伟丽击败了阿曼达·莱莫斯。 六级阅读 J) TD still has a few major challenges. J) TD 仍然面临一些重大挑战。 六级阅读 K) Nevertheless, TD's remote consultations seem to be popular: Of 3,000 patients, at least 200 have returned for follow-ups, according to TD. K) 尽管如此，TD 的远程咨询似乎很受欢迎：据 TD 称，在 3,000 名患者中，至少有 200 人返回进行随访。 六级阅读 Over 70% of TD's 3,000 patients are female, in part because many are not comfortable speaking with local doctors who tend to be male. TD 的 3,000 名患者中超过 70% 是女性，部分原因是许多人不愿意与当地男性医生交谈。 VOA Standard 2013年10月合集 Offering an alternative view is Gennadiy Goldberg, a strategist with TD Securities, who feels that even the threat of a default drove some investors to pull money from short-term money markets. 提供另一种观点的是道明证券策略师戈那迪·戈德伯格, 他觉得甚至违约的威胁会促使一些投资者把钱从短期货币市场撤出。 彭博洞察 He's like, " I go to New York, I go take care of business with TD Ameritrade, I'm the chairman there, and then I come back and obviously have my role here with you guys." And I was like, wow, that's pretty interesting. 他就像，“我去纽约，我去处理 TD Ameritrade 的业务， 我是那里的董事长， 然后我回来， 显然和你们一起在这里扮演我的角色。 ” 我当时想，哇，这很有趣。
中文百科
半数中毒量 Median toxic dose（重定向自TD50）
半数中毒量（median toxic dose，TD50）为毒理学名词，是指一药物或是毒素造成50%比例中毒的剂量。不过若要数值有意义或是可以用在实际应用上，需说明其中毒的种类。半数中毒量的剂量一般会比半数有效量 （ED50）要大，但是比半数致死量（LD50）要小。不过有些高效价的毒素（像是及洛芬太尼及肉毒杆菌毒素等）其半数中毒量和半数有效量（ED50）差异不大，一般会定义为相同。既然中毒不一定会致命，因此半数中毒量会远低于半数致死量，半数致死量也可以视为是半数中毒量的上限。若根据研究，某一毒素的结果不会致命，就会用半数中毒量定义其这类的毒性。毒性反应有不同的定义，而且有些药物在治疗时有毒性（如化疗），会造成半数中毒量和半数有效量（ED50）的混淆。毒性反应的结果一般包括癌症、失明、贫血、生育缺陷等。
英语百科
Median toxic doseIn toxicology, the median toxic dose (TD50) of a drug or toxin is the dose at which toxicity occurs in 50% of cases. The type of toxicity should be specified for this value to have meaning for practical purposes. The median toxic dose encompasses the category of toxicity that is greater than half maximum effective concentration (ED50) but less than the median lethal dose (LD50). However, for some highly potent toxins (ex. lofentanil, botulinum toxin) the difference between the ED50 and TD50 is so minute that the values assigned to them may be approximated to equal doses. Since toxicity need not be lethal, the TD50 is generally lower than the median lethal dose (LD50), and the latter can be considered an upper bound for the former. However, since the toxicity is above the effective limit, the TD50 is generally greater than the ED50. If the result of a study is a toxic effect that does not result in death, it is classified as this form of toxicity. Toxic effects can be defined differently, sometimes considering the therapeutic effect of a substance to be toxic (such as with chemotherapeutics) which can lead to confusion and contention regarding a substance's TD50. Examples of these toxic endpoints include cancer, blindness, anemia, birth defects, etc. |
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