After all, he argues, there is little differentiation among them - they are all selling the same airline tickets - so marketing dollars will rule the day.
他认为，这些在线旅行社之间并没有太多差异化，都是在销售相同的机票产品，所以市场推广费用的大小将是决定因素。
You can get this either by implicit differentiation and the product rule, or you could get this just by putting here, here,and here the partial derivatives of this with respect to x, y, and z.
可以通过隐函数微分法和乘法法则得到，或者直接,把关于x，y，z的偏微分放进来。
The main characters, types, appraisal and genetic rule of differentiation of tomato TMV and CMV were reviewed.
对番茄病毒病的主要症状、类型，番茄上TMV、CM V株系分化的鉴定及其遗传规律的研究现状进行了综述。
On the foundation we can summarize the keys of syndrome differentiation, the characteristic of therapeutic methods, and the rule of medication of director Xu.
结果：在总结前人经验和相关实验研究的基础上，徐主任提出了富有特色的冠心病心律失常中医辩证治疗独特思路。
On the foundation we can summarize the keys of syndrome differentiation, the characteristic of therapeutic methods, and the rule of medication of director Xu.
结果：在总结前人经验和相关实验研究的基础上，徐主任提出了富有特色的冠心病心律失常中医辩证治疗独特思路。
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