I heard laughing gas inhalation can be taken to relieve pain, but I used the feeling is not much usefulness.

聽說采取笑氣吸入法就能減輕痛苦久久久轮奸视频，但我用了感覺沒有太大的用處日韩精品爆乳蜜桃视频在线。

Objective To study the effidency of inhaling laughing gas for labor pain relief and its effects on mother and fetus.

目的 研究笑氣吸入性分娩鎮(zhèn)痛的療效和對母兒的影響。

That's not the only place where laughing gas shows up, however.

但是国产精品日韩在线观看最大，這里絕不是"笑氣"唯一現(xiàn)身的地方一级在线免费WWw。

David was on the air that took the name of the image of a laughing gas.

戴維就為這種氣取了個形象的名字笑氣国产a黄色。

Laughing gas is one of many greenhouse gasses that has been released into the atmosphere since industrialisation .

"笑氣"是自從工業(yè)革命以來排放入大氣中的多種溫室氣體之一。

Objective To observe the analgesic outcome of using laughing gas inhalation in labor and discuss the related nursing strategy.

目的 觀察分娩時笑氣吸入后鎮(zhèn)痛效果及其應(yīng)用的護(hù)理黄色网站网址入口。

The certainty of failure has to be our laughing gas/oxygen; modernization our most potent drug.

必然的失敗當(dāng)成為我們的養(yǎng)料WWWxxⅹCOM；拿現(xiàn)代化作為我們的強(qiáng)效興奮劑。

Objective To explore the clinical effects of combination of infiltration anaesthesia with lidocaine and laughing gas for the painless induced abortion.

目的探討氧化亞氮結(jié)合利多卡因浸潤麻醉應(yīng)用于無痛人流的臨床效果97碰碰碰人妻无码视频野外。

Laughing gas rehab s probably more expensive than the plumber.

笑氣康復(fù)的可能更昂貴妓女影院视频国产，比水暖工。

David will be laughing gas on the results of research into the "chemical and philosophical studies", the immediate sensation throughout Europe.

戴維將有關(guān)笑氣的研究成果寫進(jìn)《化學(xué)和哲學(xué)研究》一書性爱无毒网页，立即轟動了整個歐洲全国免费黄色网站大全。