isochron的音标？

Its age determined by Rb - Sr isochron is 306 Ma , suggesting that it was formed at Hercynian.据Rb -Sr 等时线测定,其年令值为306Ma, 说明它形成于海西期....

n.等时线...

“呈文”的拼音为：chéng wén ...

adj.卓越的，杰出的，超群的adv.卓越地，杰出地，超群地...

n.大奖章，大勋章( medallion的名词复数 )，（大奖章形的）圆形图案（饰物）...

coarctateretina的音标：coarctateretina的英式发音音标为：[kɔ:k'teɪtərɪti:nə]coarctateretina的美式发音音标为：[kɔk'teɪtərɪtinə]...

hemialgia的音标：hemialgia的英式发音音标为：[ˌhemɪ'ældʒɪə]hemialgia的美式发音音标为：[ˌhemɪ'ældʒɪr]...

n.无法治愈，不可救药( incurable的名词复数 )...

“珐琅”的拼音为：fà láng...

n.拇指甲，极小的东西adj.极小的，极短的...

own的音标：own的英式发音音标为：[əʊn]own的美式发音音标为：[oʊn]...

我钉了个相框.I hammered a picture frame.照片的相框用金黄色的花朵和水果装饰得非常华丽.The frames on the pictures are ornate with flowers and fruit painted in gold.铺子里陈列的面积有限,四面墙根都靠着许多积满尘土的相框画架.The floorspace was very restricted , because all round t...

haughty的近义词/同义词有：arrogant, overbearing, proud, scornful, lofty, insolent, supercilious, scornful, consequential, imperious, aristocratic, boastful, disdainful, stony, arrogant, lofty, bold, proud, audacious, snobbish, ca...

endangering的音标：...

n.平顶山（常见于美国西南部地区）( mesa的名词复数 )...

aeriform的音标：aeriform的英式发音音标为：['eərɪfɔ:m]aeriform的美式发音音标为：['erəˌfɔm]...

Andreaeobrya的音标：...