例句與造句

1. The qualitative behavior of the system at the origin in the interior of the first quadrant is studied
   對(duì)系統(tǒng)在原點(diǎn)的性態(tài)，我們作了全面的分析。
2. In the cases of and , there has no closed orbit to the system ( * ) in the first quadrant
   這里，為某一負(fù)值， 。對(duì)和不定號(hào)的情形，系統(tǒng)（ * ）在第一象限內(nèi)均不存在極限環(huán)。
3. When , there exists at least one limit cycle to the system ( * ) in the first quadrant ; theorem 2 . when , there exsits at most one limit cycle to the system ( * ) in the first quadrant ; theorem 3 . when , there exactly exists one limit cycle to the system ( * ) in the first quadrant
   我們得到下列結(jié)論：定理1 、當(dāng)時(shí)，系統(tǒng)（ * ）在第一象限內(nèi)至少存在一個(gè)極限環(huán)；定理2 、當(dāng)時(shí)，系統(tǒng)（ * ）在第一象限內(nèi)至多存在一個(gè)極限環(huán)，若存在必為穩(wěn)定的；定理3 、當(dāng)時(shí)，系統(tǒng)（ * ）在第一象限內(nèi)存在唯一的極限環(huán)，且為穩(wěn)定的。
4. It's difficult to find first quadrant in a sentence. 用first quadrant造句挺難的