【正文】
ber is a polymer with linear chain molecules has been solved. ?關(guān)于 天然橡膠是否是線型鏈狀分子聚合物的問題已經(jīng)解決了。 11. Besides, isomerization processes may also take place which in turn leads to other fairly plicated reactions. ?此外,異構(gòu)化過程也會發(fā)生,此過程又會產(chǎn)生其他相當(dāng)復(fù)雜的反應(yīng)。 12. The material balance may be made for the entire plant or for any part of it as a unit, depending upon the problem at hand. ?物料衡算可以是針對整個(gè)工廠的,也可以是像單元操作那樣的一個(gè)局部,這取決于我們所研究的問題。 13. The number of these basic unit operations is not very large and relatively few of them are involved in any particular process. ?單元操作的總量并不多,而且任何一個(gè)給定的化工過程都是由這些單元操作中的很少一部分組成。 14. The versatility of chemical engineering originates in training to the practice of breaking up a plex process into individual physical steps, called unit operations, and into the chemical reactions. ?化學(xué)工程的多功能性源于把復(fù)雜的過程分解為獨(dú)立的物理步驟(單元操作)以及化學(xué)反應(yīng)的實(shí)踐中。 15. The two pairs of electrons of oxygen may be shared with one carbon alone forming a double bond(C=O), or with two separate carbons(COC), or with one carbon and one hydrogen forming only single bonds(COH). ?氧可以和一個(gè)碳原子共用兩對電子形成碳氧雙鍵,也可以分別和兩個(gè)碳原子或者一個(gè)碳原子一個(gè)氫原子形成兩個(gè)單鍵。 163. Designs which avoid the need for hazardous materials, or use less of them, or use them at lower temperatures and pressures, or dilute them with inert materials will be inherently safe and not require elaborate safety systems. ?設(shè)計(jì)本身應(yīng)該是安全的,但無需追求完美的安全系統(tǒng)。應(yīng)盡量避免使用或減少危險(xiǎn)的原料的用量,或在較低溫度和壓力條件下使用,或用惰性材料稀釋。 17. It is important that engineers have an understanding of the physical laws governing these transport processes if they are to understand what is taking place in engineering equipment and to make wise decisions with regard to its economical operation. ?如果工程師想搞清楚機(jī)械設(shè)備中發(fā)生了什么并在操作過程做出明智的選擇,那么他們掌握這些決定傳遞過程的物理定律就顯得非常重要的。 謝謝觀看 /歡迎下載 BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH