Lesson academic fields; Present Perfect Tense Read the text Academic field

Lesson2. Cotton gin. Conjunction.
 Read and translate the text:
Cotton gin. Conjunction.

Gin equipment is designed to remove foreign matter, moisture, and cottonseed from raw seed cotton. Two types of gins are in common use—the saw gin and the roller gin. Saw gins are normally used for Upland cottons, whereas roller gins are used for the ELS (Pima) cottons. In a saw gin, the cotton enters the saw gin stand through a huller front and the saws grasp the seed cotton and draw it through widely spaced ribs. The ginning action is caused by a set of saws rotating between a second set of narrowly spaced ginning ribs. The saw teeth pass between the ribs pulling the fiber through at the ginning point. The space is too narrow for the seed to pass and so the fiber is pulled from the seed. A roller gin consists of a ginning roll (covered with a compound cotton and rubber material), a stationary knife held against the roll, and a rotary knife. The rotating roll pulls the fiber under the stationary knife. The seeds cannot pass under the stationary knife and is separated from the fiber. The rotary knife then pushes the ginned seed away from the ginning point allowing room for more seed cotton to be ginned.

Darslik2. Paxta gin. Konʼyunktsiya.
 Matnni o'qish va tarjima qilish:
Paxta gin. Konʼyunktsiya.

Gin jihozlari xom urugʻlik paxtadan begona materiya, namlik va paxtani olib tashlash uchun moʻljallangan . Ginlarning ikki turi umumiy qo'llanilmoqda – ko'rgan gin va rolikli gin. Saw gins odatda Upland paxta uchun ishlatiladi, rolikli gins ELS (Pima) paxta uchun ishlatiladi. Arra ginida paxta arra ginining huller old tomonidan turganini va arralar urug' paxtasini ushlab, keng bo'shliqli qovurg'alar orqali chizadi. Ginning harakatiga tor bo'shliqli ginning qovurg'alarining ikkinchi to'plami o'rtasida aylanadigan arralar to'plami sabab bo'ladi. Ko'rgan tishlar ginning nuqtasida tolani tortib olgan qovurg'alar orasiga o'tadi. Bo'shliq urug'ning o'tishi uchun juda tor va shuning uchun tola urug'dan tortib olingan. Rolikli gin gin (biriktiruvchi paxta va kauchuk material bilan qoplangan), rulonga qarshi ushlab turilgan statsionar pichoq va aylanadigan pichoqdan iborat. Aylanuvchi rulon tolani statsionar pichoq ostiga tortadi. Urugʻlar statsionar pichoq ostidan oʻta olmaydi va toladan ajratiladi. Shundan soʻng aylanuvchi pichoq ginned urugʻini ginning nuqtasidan uzoqlashtiradi, bu esa koʻproq urugʻ paxtasini ginlash uchun joy ajratishga imkon beradi.