求石膏粉氯離子檢測方法，要常規(guī)的 謝謝了扣扣287505496

　

2018-12-02 06:35:47 267 0

化工專業(yè)術(shù)語，要一百個，急求，謝謝了……

　

2012-01-30 15:21:54 376 1

求實驗室做酚醛樹脂的試驗方法，越多越好。謝謝了！

需要的儀器，藥品，步驟，注意事項等，越詳細越好！也可以直接把實驗資料發(fā)我郵箱！731497260@qq.com謝謝... 需要的儀器，藥品，步驟，注意事項等，越詳細越好！也可以直接把實驗資料發(fā)我郵箱！731497260@qq.com 謝謝 展開

2011-04-28 14:14:42 306 1

廢水氯離子的檢測方法

氯離子的數(shù)量在25-50之間，如何測出含多少氯離子.在線等，急急!

2016-01-10 15:39:03 639 1

求翻譯段英文合同，謝謝了。

The exhaust air from the kitchen shall be cleaned as sufficient as possible over the place of generation by an aerosol separator accommodated in the hood. The aerosol separators shall be easily accessible， easy-to-demount and cleanable in a... The exhaust air from the kitchen shall be cleaned as sufficient as possible over the place of generation by an aerosol separator accommodated in the hood. The aerosol separators shall be easily accessible， easy-to-demount and cleanable in a dish washer. To this end they shall be made of chromium nickel steel only. The rate of flow recommended by the manufacturer for the separator shall be kept. Knit fabric filters and plug-on grille filters as the only aerosol separators shall not be used. The exhaustion hoods in the kitchens which are arranged on top of kitchen equipment and used to collect vapor and steams quickly shall be designed such that a sufficiently high retaining capacity is achieved. Kitchen exhaust air hoods shall at least 0.2 m protrude over the circumference on top of the kitchen appliance. If the lower edge of the hood is higher than 2.10 m on top of the floor， a higher protrusion shall be provided (angle of opening = 12° from the edge of working areas). Collection chutes shall be free from burr and arranged such at all sides that they can be drained via drains. Hoods of chromium nickel steel with integrated lighting only shall be used as exhaustion hoods. If outdoor air lines to kitchens or other rooms are passed through fire sections， they shall be equipped with suitable and approved fire protection flaps or the pipeline shall be provided with a fire protection lining from the outlet of the room. The fire protection flaps used shall be tested and approved for the relevant case of application. Exhaust air channels shall be made of fire-resistant material. Specific measures are required for the use of gas heated large-size kitchen equipment in order to ensure the necessary supply of combustion air on the one hand and to ensure reliable exhaust gas dissipation on the other. If kitchen exhaust air and exhaust gases of gas appliances are fed off commonly， an additional safeguard shall be provided. This safeguard shall switch off the gas fired equipment if the exhaust air system fails. The high exhaust gas temperatures shall be taken into account when selecting the hood structure. In any case， gas equipment shall be operated only if the room air system is in operation. 展開

2011-01-06 01:05:10 518 3

人參要怎么吃？如題 謝謝了

請問人參要怎么吃？

2014-04-26 14:20:29 481 1

去角質(zhì)方法？謝謝了，大神幫忙啊

還有相關(guān)護膚品... 還有相關(guān)護膚品 展開

2015-02-05 22:01:19 514 2

酒精中氯離子的檢測方法

　

2011-01-15 09:27:04 359 1

有檢測PM2.5的傳感器嗎？謝謝了

　

2012-05-13 01:13:38 305 4

飼料原料檢測一般檢測哪幾方面如題 謝謝了

我剛從事化驗工作不久，我們公司這邊現(xiàn)在才開始真正的重視原料的質(zhì)量，向大家請教下，一般你們飼料原料自己都檢測哪些方面？謝謝！... 我剛從事化驗工作不久，我們公司這邊現(xiàn)在才開始真正的重視原料的質(zhì)量，向大家請教下，一般你們飼料原料自己都檢測哪些方面？謝謝！ 展開

2014-10-21 03:00:00 481 1

有什么方法保養(yǎng)頭發(fā)?如題 謝謝了

拉頭發(fā)拉到枯黃.沒營養(yǎng)..怎樣保養(yǎng)頭發(fā)呢?

2014-04-29 19:45:37 559 1

保護視力、有哪些好方法？如題 謝謝了

　

2014-04-29 04:33:16 566 2

防輻射有什么好方法？如題 謝謝了

　

2014-04-29 16:49:28 460 3

化學(xué)氯離子檢測方法是什么？去哪里可以檢測化學(xué)氯離子

　

2018-05-23 13:36:27 516 4

氯離子要小于60ppm，怎么檢測

　

2018-12-09 01:26:42 414 0

急求一個啤酒發(fā)酵罐的cad圖紙！謝謝了

　

2016-05-18 11:32:41 366 1

求化驗室，冰箱溫度記錄的表格，謝謝了親們

　

2018-11-21 17:43:32 408 0

求大神分析掃描電鏡圖片，形貌分析，謝謝了

2014-12-21 21:18:59 349 1

食品安全快速檢測需要檢測哪些指標(biāo)？急！謝謝了！

例如對一家餐館的菜進行檢驗，看它是否符合標(biāo)準，需要檢驗?zāi)男┲笜?biāo)呢？要用到哪些儀器呢？

2008-01-05 08:51:43 308 1