象 Introduction o grammar features generally be objective, accurate, and concise > Passive sentence(被动语句) > Non-finite verbs(非限定动词) Postpositive attribute(后置定语) Nominalization structure(名词化结构) > Long sentence(长句) > Elliptical sentence(省略句) Imperative sentence and formulaic(祈使句及公式化表达) > Conditional sentence(条件句) >“It” sentence(it语句) Communications Engineering
Communications Engineering 12 Introduction Grammar Features ➢ Generally be objective, accurate, and concise ➢ Passive sentence (被动语句) ➢ Non-finite verbs (非限定动词) ➢ Postpositive attribute (后置定语) ➢ Nominalization structure (名词化结构) ➢ Long sentence (长句) ➢ Elliptical sentence (省略句) ➢ Imperative sentence and formulaic (祈使句及公式化表达) ➢ Conditional sentence (条件句) ➢ “It” sentence (it语句)
象 Introduction Passive sentence(被动语句) Generally, the subject is the objective phenomena or things Emphasized Supercontinuum generation in optical fibers was first observed in 1976 by Lin and stolen for pumping in the normal group-velocity dispersion(GvD)regime of standard ilica fiber A novel kind of all-solid photonic bandgap fiber(As-PBGF has been used in the master oscillator power amplifier (MOPA)structured Er/Yb co-doped pulsed fiber amplifier to suppress the yb band parasitic lasing for the power scaling and safety operation. Communications Engineering 13
Communications Engineering 13 Introduction Passive sentence (被动语句) ➢ Generally, the subject is the objective phenomena or things. ➢ Emphasized. Supercontinuum generation in optical fibers was first observed in 1976 by Lin and Stolen for pumping in the normal group-velocity dispersion (GVD) regime of standard silica fiber. A novel kind of all-solid photonic bandgap fiber (AS-PBGF) has been used in the master oscillator power amplifier (MOPA) structured Er/Yb co-doped pulsed fiber amplifier to suppress the Yb band parasitic lasing for the power scaling and safety operation
象 Introduction Non-finite verbs(非限定动词) Gerund(动名词, participle(分词), infinitive(动词不定式) Avoid complex sentence structure Gerund(动名词) The signal should be filtered before being amplified. Conducting electricity means the flow of electrons through an object. Participle(分词) The transistor which is working with correctly polarities, can work as an amplifier The transistor working with correctly polarities can work as an amplifier. Communications Engineering
Communications Engineering 14 Introduction Non-finite verbs (非限定动词) ➢ Gerund (动名词), participle (分词), infinitive (动词不定式). ➢ Avoid complex sentence structure. Gerund (动名词) Participle (分词) The signal should be filtered before being amplified. Conducting electricity means the flow of electrons through an object. The transistor, which is working with correctly polarities, can work as an amplifier. ✓The transistor working with correctly polarities can work as an amplifier
象 Introduction Infinitive(动词不定式) The capacity of individual generators is larger and larger so that the increasing demand of electric power is satisfied The capacity of individual generators is larger and larger to satisfy the increasing demand of electric power. To increase the output power of er/yb co-doped fiber lasers, the Yb-ase should be controlled Communications Engineering 15
Communications Engineering 15 Introduction Infinitive (动词不定式) The capacity of individual generators is larger and larger so that the increasing demand of electric power is satisfied. ✓The capacity of individual generators is larger and larger to satisfy the increasing demand of electric power. To increase the output power of Er/Yb co-doped fiber lasers, the Yb-ASE should be controlled
象 Introduction Postpositive attribute(后置定语) All radiant energies have wavelike characteristics, which are analogous to those of waves moving through water. VAll radiant energies have wavelike characteristics analogous to those of waves moving through water. The instruments present include some digital ones which are relative to DSPs. The instruments present include some digital ones relative to DSPs Communications Engineering
Communications Engineering 16 Introduction Postpositive attribute (后置定语) All radiant energies have wavelike characteristics, which are analogous to those of waves moving through water. ✓All radiant energies have wavelike characteristics analogous to those of waves moving through water. The instruments present include some digital ones which are relative to DSPs. ✓The instruments present include some digital ones relative to DSPs