《科技英语写作 Scientific English Writing》课程教学资源（PPT课件讲稿）（双语版）Section Ⅸ

Scientific English Writing Section IX

Scientific English Writing Section Ⅸ

Ellipsis I. In compound sentences V电压的单位是伏符,电流的是安培。 Voltage is measured in volts and current in amperes. V地球级引月球,月球也吸引地球 The earth attracts the moon and the moon the earth vA great many kinds of transistors exist, and many versions of each kind

Ellipsis Ⅰ . In compound sentences 电压的单位是伏特，电流的是安培。 Voltage is measured in volts and current in amperes. 地球吸引月球，月球也吸引地球 The earth attracts the moon and the moon the earth.  A great many kinds of transistors exist, and many versions of each kind

V电子被注入P区,历空穴被注入N区 Electrons are injected into the p region, and holes into the Region v In the table, a notation(fri of infinite impedance indicates that the terminating impedance should be a minimum of10tol00 times the nominal(额定 impedance at the specific port, and zero that it should be well less than a tenth the nominal impedance at the port and less than a hundredth if possible

电子被注入P区，而空穴被注入N区。 Electrons are injected into the P region, and holes into the N region.  In the table, a notation(标记) of infinite impedance indicates that the terminating impedance should be a minimum of 10 to 100 times the nominal(额定) impedance at the specific port, and zero that it should be well less than a tenth the nominal impedance at the port and less than a hundredth if possible

II. Ellipsis in adverbial clauses I common pattern it is con. t they are prep. phrase >When pure, water is a colorless liquid. 金属受热就会膨胀 >Metals expand when heated. 个常数无论有多大,决不能说成是无穷大 >A constant number, however large, is never spoken of as infinite

1. common pattern Ⅱ . Ellipsis in adverbial clauses ➢When pure, water is a colorless liquid. 金属受热就会膨胀 ➢Metals expand when heated. conj. + adj. p. p. prep. phrase n. it is they are + 一个常数无论有多大，决不能说成是无穷大 ➢A constant number, however large, is never spoken of as infinite

2. set patterns when possible/necessary where if any 如果有的话,即使有 yf 如果是这样的话 如果有误差的话,应予以校正( correct) Errors, if any, should be corrected. 若需要的话,可以把这个函数转换成时函数。 This equation, if necessary, can be converted to a time function

2. set patterns ➢如果有误差的话，应予以校正(correct). Errors, if any, should be corrected. ➢若需要的话，可以把这个函数转换成时函数。 if any 如果有的话，即使有 if when where possible / necessary if so 如果是这样的话 This equation, if necessary, can be converted to a time function

Ⅲ. Ellipsis after prep (Two prep share an object V作者现在从享于图像处理和识别的教学与研究 xxx The author is now engaged in the teaching and researching ofimage processing and recognition V必须求出这个电阻上的电流和电压 It is necessary to find out the current through and the voltage across this resistor V这位教把在研先和应用沃氏数( Walsh functions)方面 起了积极的作用

Ⅲ . Ellipsis after prep. (Two prep. share an object) 作者现在从事于图像处理和识别的教学与研究 ※※ The author is now engaged in the teaching and researching of image processing and recognition. 必须求出这个电阻上的电流和电压 It is necessary to find out the current through and the voltage across this resistor 这位教授在研究和应用沃氏函数（Walsh Functions）方面 起了积极的作用

v Chapter 4 Measurements of with, and in the Presence of Noise. 加速度与外力成正比,并且方向相同 y The acceleration is directly proportional to, and in the same direction as, the applied force. 我们想要求出提供给这个器件或出它消耗的平均功率。 y It is desired to find out the average power provided for or dissipated by this device

 Chapter 4 Measurements of, with, and in the Presence of Noise. 加速度与外力成正比，并且方向相同  The acceleration is directly proportional to, and in the same direction as, the applied force. 我们想要求出提供给这个器件或由它消耗的平均功率。  It is desired to find out the average power provided for or dissipated by this device

Section 9 Discontinuous Modification E-C Translation A study will be made of the percentage ofusable and defective parts The theory is of great importance that the hotter an object, the more energy it radiates

E-C Translation: Section 9. Discontinuous Modification A study will be made of the percentage of usable and defective parts. The theory is of great importance that the hotter an object, the more energy it radiates

I. Pattern 1 phrase subject v modifier of subject Clause V根水不存在实现这种设备的可能 No chance exists for this device to be realized. 往往出现这样的问题,一个信号大于偏压(bia) The problem often arises that a signal is greater than bias y Very wonderful changes in matter take place before our eyes every day to which we pay little attention

Ⅰ. Pattern 1 subject + v. + modifier of subject phrase clause  往往出现这样的问题，一个信号大于偏压（bias） The problem often arises that a signal is greater than bias. No chance exists for this device to be realized.  根本不存在实现这种设备的可能。  Very wonderful changes in matter take place before our eyes every day to which we pay little attention

II. Two modifiers after n n+ of A+ prep B n+ prep B+ ofA It is necessary to determine the effect on the device of changing the ambient temperature. V这种新设备与原有的设备相比具有体积小、重量轻、结构 筒单的优点。 This new device has the advantages over those available of small size, light weight and simple structure

Ⅱ . Two modifiers after n.  这种新设备与原有的设备相比具有体积小、重量轻、结构 简单的优点。 This new device has the advantages over those available of small size, light weight and simple structure. n. + of A + prep. B n. + prep. B + of A It is necessary to determine the effect on the device of changing the ambient temperature