first是什么意思

用法例句

According to the particularity of initial mining and discharging work on plough mining face in Malan Coal Mine,this paper expounds the improvements for the techniques adopted in initial mining and discharging on the mining face.

根据马兰矿刨煤机工作面初采初放工作的特殊性,阐述了对工作面初采初放工艺的改进。

Dynamic change in contents of enzyme and hormone of the colostrum of Holstein;

荷斯坦奶牛初乳中酶及激素的含量变化研究

Female sex hormones in colostrums,milk and dairy products;

初乳、常乳及其制品中的雌性激素

Analysis on activity content in bovine colostrum;

牛初乳中活性物质IgG含量分析

Probe to Logistics Cost Management in Enterprises;

企业物流成本管理问题初探

A Probe into The Administration of Amalgamated University s Personnel File;

合并高校人事档案管理初探

A probe into alteration and claim activities of construction enterprisesunder the FIDIC contract condition;

施工企业在FIDIC合同条件下变更与索赔工作初探