查询词典 X-ray exposure

A standard calibrated mini-c-arm fluoroscope was used to image a phantom upper extremity with thirteen radiation dosimeters placed at various distances and angulations to detect radiation exposure.

在上肢模型的不同距离和角度放置13个辐射剂量计，记录带刻度的标准小型C臂X光透视机的放射性暴露。

It's shown that the measured peak of the tube voltage is close to the set value during the exposure.

认为由于X线机在曝光过程管电压峰值与设定值基本相同，因此各物质在同一曝光条件下的平均数衰减系数基本不变。

The rate of absorption and export by the leaf related closely to the exposure time with an asymetotic curve. The equations are: Y=93.0-84.8(0.987)~x and Y=86.0-79.1(0.986)~x,respectively.Autoradiograph of seedlings treated on a single leaf(dose:107.3×10~3Bq)showed that not only PP333 was transported acropetally to the tip, but also moved basipetally to the roots.

过去的研究工作所得的普遍结论是：PP333是通过木质部运输，叶片吸收的PP333向其他部位运输的量极少，因而，叶片吸收在抑制生长中不起或不起重要作用，即叶片吸收无效阁。

The suspicion of cancer is increased by the following factors:(1) age (young patients are more susceptible);(2) sex, if the patient is a man (more women have thyroid cancer by a ratio of 2:1, but women have more thyroid disease by a ratio of about 8:1; thus, a man with a nodule should be regarded with greater suspicion);(3) a solitary nodule (multinodular lesions are usually benign unless there is a dominant cold nodule by thyroid scan);(4) a cold nodule on thyroid isotopic scanning (hot nodules are seldom cancerous);(5) a history of radiation exposure to the head, neck, or chest, especially in infancy and childhood (eg, for an enlarged thymus or enlarged tonsils, acne, or lymphoma);(6) radiographic evidence of fine, stippled psammomatous calcification or dense, homogeneous calcification;(7) recent or rapid enlargement; and (8) stony-hard consistency.

下列因素可增加癌的可疑性：(1)年龄；(2)性别，如果病人为男性(女性与男性的甲状腺癌比为2：1，但女性更多的是得甲状腺病，约为8：1，因此，男性有甲状腺结节时应考虑癌的可能性更大)；(3)孤立小结(多结节病变一般为良性，除非甲状腺扫描时呈明显的冷结节)；(4)甲状腺同位素扫描时发现冷结节；(5)有过头、颈、胸放射接触史，尤其是婴儿和儿童期(例如，因胸腺增大或扁桃体肿大、痤疮或淋巴瘤等)；(6)X线片见细、斑点状、沙粒样钙化或致密、匀质钙化；(7)最近增大或快速增大；(8)质地石头样坚硬。

The toxicity of the herbicide simazine to the survival and gonadal development of amphibian Xenopus laevis were determined and compared with the effects of atrazine. X. laevis were exposed to simazine or atrazine in water from Nieuwkoop and Faber stage 46/47 to one month postmetamorphosis. Followed by another two months without exposure, the gonads of frogs were examined in gross morphology and histology.

为了研究三嗪类除草剂西玛津对两栖动物非洲爪蟾生存和性腺发育的毒性作用，并且与另一种三嗪类除草剂阿特拉津的毒性进行比较，将非洲爪蟾从46/47阶段开始暴露西玛津和阿特拉津到变态1个月后停止，再饲养2个月后将其解剖，取性腺做形态学和组织学观察。

The latency period between exposure and development of malignancy they report as 2-5 years for leukemias and 10-20 years for solid tumors.

BEIR 7发现常与X线暴露有关的是恶性肿瘤是白血病、甲状腺肿瘤、乳腺癌。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。