Omission
Because of the difference in syntax and usage between Chinese and English the methods of“amplification”and“omission”are called for, depending on the real meaning of the original and the usage of the language to be translated into.
1. Omission of the "article". e. g.
"That veteran scientist says，‘Remote sensing of the earth from man-made satellites seems to have an extremely promising future. ’ ”
“那位老科學家說，‘從人造衛星上對地球進行遙感勘測，其前途看來是不可限量的。’ ”
2. Omission of“possessive pronoun”, e. g.
“Seamen who went on the first great voyages of discovery in the Antarctic got their drinking water by melting blocks of ice. ”
“最初航行在南極地區從事偉大科學考察的船員和水手，就是靠融化冰塊來獲取飲用水的。”(Here the possessive pronoun“their' which is syntactically necessary in English，should be omitted in the Chinese version, in line with the usage of the Chinese language.)
3. Omission of the“relative pronoun”，“relative adverb”or“pronoun”.
“There is a certain aeroplane noise which is quite unmistakable. ”
“有一種飛機的響聲是完全不會被聽錯的。”
“Indeed there are times when it (speed) can be a great disadvantage. ”
“的確，有時候飛得快反而會成為很大的缺點。”
4. Omission of“structural words”.
Some“structural words”，though necessary in English syntactically, should be omitted, too. e, g.
“Some of the machine tools are so small that they can be moved by hand. Others are so big that they weigh 100 tons or more. ”
“有些機床很小，用手就可以搬動；另外一些則很大，重達100噸或100噸以上。”
5. Omission of“formal subject‘it’”or “formal object‘it’” e. g.
“It would not be appropriate to discuss this matter at length in a book on one branch of science.”
“在一本只涉及某一科學分支的書里詳盡地討論這個問題是不合適的。”
6. Omission of“linking verbs”or those verbs which serve as“linking verbs”，e, g.
“It is permissibJe, however, to postulate that the effect of viscosity is confined to a thin boundary layer (except where flow separation occurs) so that the main flow is approximately dependent only on Mach number. ”
“然而，可以假定，粘性影響只局限在一層薄薄的附面層之內（流動發生分離的情形除外）因此，主流仍然近似地只同馬赫數有關。”
7. Omission of“signs of comparison”in the Chinese version.
On this question, two paints are to be noted.
First，there are quite a few English expressions which, though of a "comparative degree" in form，stand for a specific concept or state of affairs; and this kind of "comparative degree" is usually not to be expressed in the Chinese version, e. g, "Many seats of higher learning have graduate programs in this field." In this sentence “higher learning”means“高等學問”。So the sentence should be translated into：“許多高等學問的研究場所（如大學、研究院、所等）都開設這方面的研究生課程。”Similarly, “higher education”——“高等教育”；“younger generation”——“年輕的一代”；“better students”——“優秀學生”；“weaker states”——“弱國”etc.
Second, whereas in English there are“signs of comparison”like “-er” and “-est”，in Chinese too there are “更” and “最”. Howevert we should on no account equate“更” with“-er”and“最”with “-est” in a mechanical way. For instance, how are we to translate“To make this simpler, research workers often use specific gravity instead of density." According to usage of the Chinese language, “更”is not called for and the sentence should normally be rendered into：“為了簡便，研究人員常常使用比重而不用密度。”Similarly, we should translate "But if the steel plate is shaped into a ship, the air that is in the space in the steel hull makes the specific gravity of the ship smaller." into“但是，如果將鋼板做成船的話，那么，鋼質船體內所含的空氣使船的比重減小。”“It is enough to know that the sound becomes weaker as the air is taken from the bottle. ”into“只要知道當空氣從瓶中抽出時鈴聲變弱就夠了。”“This laboratory is smaller than that one. ”——“這個實驗室比那個小。”
參考譯文
省略法
因為漢語同英語在句法上和用法上的差異，要求根據原文的真正意義和被譯成語言的用法而采用“增字法”和“省略法”。
1. 冠詞的省咯
（例句和譯文參考上文。）
2. 所有格代詞的省略
(例句和譯文參考上文。）
（句中的所有格代詞“their”從英語的句法要求來看是必要的，但根據漢語的用法，卻應予以省略。）
3. 關系代詞、關系副詞或代詞的省略
（例句及譯文考上文。）
4. 結構用詞的省略
盡管從英語句法上看來有些結構用詞是必需的，但在漢譯中也應省略。
(例句及其譯文參考上文。）
5. 形式主語或形式賓語(it)的省略
(例句及其譯文參考上文。）
6. 聯系動同或起聯系動詞作用的動詞的省略。
(例句及其譯文參考上文。）
7. 漢譯中省珞“比較級的標記”
在這個問題上，有兩點要注意。
第一，有相當多的英語表述，盡管在形式上用的是“比較級”，但卻表示事物的具體概念或狀態。因此，這類“比較級”在漢語中通常不表示出來。例如：Many seats of higher learning have graduate programs in this field. 在這個句子中“higher learning”的意思是“高等學問”。因此該句應譯成：許多髙等學問的研究場所（如大學、研究院、所等)都開設這方面的研究生課程。與此類似：“higher education”是“高等教育”：“younger generation”是“年輕的一代”；“better students”是“優秀學生”；“weaker states”是“弱國”等等。
第二，像英語中有“-er ”和“-est ”一類比較級的標記一樣，漢語中也有“更”字和“最”字，但是，決不可機械地把“更”字同“~er”、把“最”字同“-est”劃上等號。例如，如何翻譯“To make this simpler, research workers often use specific gravity instead of density. ”按照漢語的用法，不需要用“更”字，句子通常應譯成：為了簡便、研究人員常常使用比重而不用密度。與此類似，（例句參考上文。）
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