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- Pure helium gas was applied to wood particles which were placed in a vessel.Aldehyde was collected by a 2.4-DNPH cartridge and analyzed by HPLC. 利用高效液相色譜儀和氣相色譜儀分析4種木材(杉木、楊木、馬尾松和尾葉桉)中有機揮發(fā)物的成分及含量,結果表明:4種木材生材常溫均可釋放多種醛和萜烯揮發(fā)物,其中乙醛的釋放量最高;
- The results computed show that 9 5% of coefficient of performance( COP )AND 6 7% of cooling power at 80 K could be gained,if a mixture pair of 10% nitrogen and 90% helium is used instead of pure helium for the pulse tube refrigeration. 計算結果表明 ,如果用10%25氮與 90%25氦的混合工質(zhì)對代替純氦 ,脈管制冷機在 80K溫度下的制冷系數和制冷量分別可以提高 9 5%25和 6 7%25。
- Methods Using methyl salicylate as inter-standard, the content of borneol was assayed by DB-5 capillary column with FID detector, programmed temperature and high pure helium as carrier gas with the flow rate of 1 mL/min. 方法以水楊酸甲酯作為內標,色譜柱為DB-5毛細管柱,FID檢測器,程序升溫,高純氦氣作為載氣,流速為1mL/min。
- It was pure luck that he was home when we called. 非常幸運，我們打電話(huà)時(shí)他在家里。
- I have the pure heart of a newborn baby. 我有一顆赤子之心。
- We must not condemn her on pure supposition. 我們不能單憑猜測就譴責她。
- Don't believe what he's saying it's pure bunkum. 別相信他的話(huà)--純粹是胡說(shuō)八道。
- A long hot bath can be pure luxury. 洗個(gè)痛快的熱水澡可真是一種至高的享受。
- The fields were all covered with pure white snow. 白雪皚皚，鋪滿(mǎn)田野。
- The condition or quality of being pure or chaste. 純潔純潔或貞潔的狀況或者品質(zhì)
- That new lamp they've bought is pure kitsch. 他們新買(mǎi)的那盞燈真俗氣。
- Besides, it's make of pure wool, very soft. 另外，這是純羊毛的，手感柔和。
- Helium and neon are inert gases. 氦和氖為惰性氣體。
- It's make of pure wool, very soft. 這是純羊毛的，非常軟。
- Sorry I hit you; it was a pure reflex. 對不起我撞著(zhù)你了; 這完全是無(wú)意的。
- You think that, do you? Pure illusion! 你是那麼想的嗎? 純粹是錯覺(jué)！
- The shooting was in pure self-defense. 開(kāi)槍純粹是為了自衛。
- The antimatter equivalent of helium. 反氦與氦等價(jià)的反物質(zhì)
- The loser's scorn for the award is pure sour grape. 失敗者對獎品的輕視純粹是吃不到葡萄說(shuō)葡萄酸。
- His attack on the government was pure vitriol. 他純粹出于惡意抨擊政府。
