Our production schedule is so tight ____ we may have to take on extra staff.为什么要用that so在句子中不也做了成分吗,做状语

Our production technology has greatly improved. production production Production Production production 3sched 80 pipe是什么管? our company -----a 50% increase in production this year帮我填横线上的空 译You are driving it too close to our cost of production. Yelow 65 is one of them besides our own production and export from the plant. The（ ）production of engines in our factory has doubled this year.A.manualB.annualC.amountD.alike 这句话呢.天哪Our proposal will also address India's interest in technology transfer and indigenous co-production production lead production是什么意思、 production是什么意思 Production Notes production sample please send the artwork for our approval before proceed to production>中our是否正确?或者说正确的词应是 us.Prodution可不可以当动词用?