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- The method has been successfully used for determination of co balt at the ppb level in authentic samples . 用2mL 1mol/L的HClO_4溶液淋洗鈷亞硝基R鹽的絡(luò )合物直接進(jìn)行比色測定,可以測定ppb級的痕量鈷,并成功地將該方法應用于試樣分析。
- The melamine concentrations measured in poultry tissue samples from six birds from two locations exposed to contaminated feed were all below the 50 ppb level. 三聚氰胺濃度測定家禽組織樣本來(lái)自6個(gè)鳥(niǎo)類(lèi)從兩個(gè)地點(diǎn)暴露在污染的飼料均低于50濃度水平。
- Sulfinert coating provides stable storage of sulfur and mercury at ppb levels in petroleum samples. 硫鈍化的涂層為采樣罐提供了穩定的性能，可以?xún)Υ鍼PB級的含硫樣品。
- DETERMINATION OF ppb LEVEL Ag,Cd,Pb,Au,Bi AND Cu BY FLOTATION-FAAS 浮選-原子吸收法連續測定ppb級銀、鉛、鎘、金、鉍、銅
- DETERMINATION OF PPB LEVEL Gd,Sm,Dy AND Eu IN UF_6 OR U_3O_ BY CATION IONEXCHANGE SEPARATION-HORIZONTAL ICP-AES METHOD 陽(yáng)離子交換分離-水平式ICP-AES法測定UF_8或U_3O_8中PPb數量級Gd、Sm、Dy、Eu
- I'd like a room on the upper level. 我想要樓上的房間。
- The 50 ppb level represents a conservative estimate of the Limit of Detection (LOD) for the methods employed; 50濃度水平是一個(gè)保守的估計，檢測限（LOD值）為采用的方法;
- We need a mechanical digger to level the ground. 我們需要一臺挖掘機來(lái)平整土地。
- I hope you'll be on the level with me. 我希望你對我坦率布公。
- She needs to win this point to level the score. 她要贏(yíng)得這一分才能將比分扳平。
- Keep a level head and phone the Fire Department. 保持冷靜，打電話(huà)給消防署。
- A football field should be level. 足球場(chǎng)地應該平坦。
- The rising level of crime is a sign of the times. 犯罪率增高是這一時(shí)代的特徵。
- Study on flow-injection spectrophotometric determination of ppb level silicate in boiler water and feedwater in thermal power plant 基于流動(dòng)注射分析技術(shù)快速測定電廠(chǎng)汽水中痕量硅酸鹽的研究
- I have told the whole story on the level. 我已經(jīng)誠實(shí)地把整個(gè)事情經(jīng)過(guò)講出來(lái)了。
- Find level ground for the picnic table. 找一處平坦的地面放野餐的餐桌。
- This mountain is 1,400 meters above sea level. 這座山海拔1,400米。
- He has a level head in emergencies. 他在危急關(guān)頭能鎮定自若。
- If the table top isn't level, things will roll off. 如果桌面不平，東西就會(huì )滾下來(lái)。
- The level of inflation has gone beyond 8%. 通貨膨脹率已經(jīng)超過(guò)了8%。
