Tl
Tl
TL
or t/ltl
Tl
TL
Tl
Chem. Symbol.
T/L
T.L.
Tl
Noun | 1.![]() |
单词 | tl | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
释义 | TlTlTLor t/ltlTlTLTlChem. Symbol. T/LT.L.Tl
TlTl,symbol for the element thalliumthallium, metallic chemical element; symbol Tl; at. no. 81; interval in which at. wt. ranges 204.382–204.385; m.p. 303.5°C;; b.p. about 1,457°C;; sp. gr. 11.85 at 20°C;; valence +1 or +3. ..... Click the link for more information. . Tlsound transmission loss, transmission loss, TLtransmission lossTlthallium[thal´e-um]The thallium scan offers many advantages. It is noninvasive except for the administration of the radioisotope, which involves a radiation dose slightly larger than that received during a chest x-ray, and is extremely accurate. The thallium-201 may be administered while the patient is exercising on a treadmill and being monitored by electrocardiogram. Subsequent scintigrams show areas of inadequate perfusion. This test is less likely than conventional exercise or stress testing to indicate disease when none is present and is more likely to detect disease when it is present. See also scintigraphy" >exercise thallium scintigraphy and scintigraphy" >myocardial perfusion scintigraphy. TlTlTLTL2. A former ISO 3166-2 geocode for East Timor. This is used as an international standard for shipping to East Timor. TL
Tl
Synonyms for Tl
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
随便看 |
|
英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。