1.我们在计划向贵公司购买这种产品的数量,确定好了再给你写邮件.
We're currently figuring out the exact number of products to purchase from your company.We will send you a letter when we've confirmed the number.
2.因为功率不稳定还在测试,等明天测试稳定后就可以发货给你们.
Because the power is still unstable,we're still testing and will send you the goods tomorrow after it's been stablized.
♥ 自己认真翻译的,应该比较地道,