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- The middle density fibreboard(MDF) wastewater ,which contains a great deal of tannin and xylogen mainly, usually can not be degraded by common physicochemical methods. 中密度板生產(chǎn)廢水含有大量的單寧和木質(zhì)素,采用通常物化方法幾乎不能將其降解。
- The mass of cortisol adenoma was bigger, middling density. 皮質(zhì)醇腺瘤腫塊稍大，中等密度。
- This paper mainly states PLC SINEC H1 network architecture,reference model and protocols,and gives the example of programming method for network communication and the application to control system of middle density fibre-board(MDF). 論述可編程序控制器SINECH1網(wǎng)絡(luò )的參考模型和網(wǎng)絡(luò )協(xié)議并以中密度纖維板生產(chǎn)控制系統為例說(shuō)明該網(wǎng)絡(luò )通信的編程方法。
- At present Middle Density Fiberboard (MDF) are applied on food outside package.The Urea-formaldehyde (UF) which has free formaldehyde was often used in MDF, so it does harm to the human health. 摘要目前中密度纖維板常常作為食品和禮品外包裝材料，但中密度纖維板常常使用含有游離甲醛的脲醛樹(shù)脂，從而對人體有一定的危害。
- I'm sick of being piggy in the middle all the time. 我膩煩了總是夾在爭吵雙方的中間。
- He planted roses in the middle of the garden. 他在花園中間種上玫瑰。
- He admires the chivalry of knights in Middle Ages. 他很佩服中世紀武士的俠義精神。
- It has its roots deep in the Middle Ages. 它起源于遙遠的中世紀。
- My wheel twisted off in the middle of the car race. 我的車(chē)輪子在汽車(chē)比賽中途脫掉了。
- We have studied botany in our middle school. 我們在中學(xué)的時(shí)候就學(xué)過(guò)植物學(xué)。
- There are 300 students or so in this middle school. 這所中學(xué)大約有300個(gè)學(xué)生。
- He was appointed the rector of the middle school. 他被任命為那所中學(xué)的校長(cháng)。
- She has dropped out in the middle of the race. 她中途退出比賽。
- We've learned algebra in middle school. 我在中學(xué)就學(xué)過(guò)代數學(xué)。
- He broke off in the middle of a sentence. 他一句話(huà)只說(shuō)了一半就停住了。
- He is standing in the middle of the classroom. 他正站在教室中間。
- He is studying at a junior middle school. 他正在上初中。
- We had studied physiology in middle school. 我在中學(xué)就已經(jīng)學(xué)過(guò)生理學(xué)。
- The sheets have worn thin in the middle. 床單的中間部分磨薄了。
- Keywords Middle density fiberboard;Formaldehyde emission;Perforator method;Pump method; 中密度纖維板;甲醛釋放量;穿孔法;抽吸法;
