缺少

If the headrace scheme is used, the long tailrace tunnel will be essential in underground project.

而在采用首部式开发时，长尾水隧洞是地下厂房枢纽中不可缺少的组成部分。

Friendship is an essential ingredient in the making of a healthful, rewarding life.

友谊是使人的一生健康而有益所不可缺少的组成部分。

The popularization and development of external wall heat insulation technology rely on the support of technical standards and specifications.

在国家技术政策和节能设计标准的推动下，我国外墙外保温技术得到长足发展，但在推广使用过程中却遇到了障碍，原因是缺少技术标准、规范等的支持，因而出现了不少问题。

Take heliocentric theory as an example, Copernicus considered that it is not the earth but the sun is the centric of the universe.

许多没有完全证实的理论都是其他理论的基础，缺少了这些理论，整个理论体系都难以支撑。

It must return to a helipad to reload.

备注：这段说明与实战不符，只要数量足够，建议直接打击敌人的基地或缺少防空的主战部队。

Being essentially one part which appraised after the item, being effect and the influence to appraise the project management, the purpose is the experience lesson summing up the project management to the project management twist hempen thread effect evaluation, and raises the project management standard, and finally promotes the item successfully to accomplish.

现有高速公路建设项目管理中的评价主要集中在经济和技术方面，而对管理绩效评价的研究主要包括监理的效果评价和施工过程中的一些单指标的评价，没有形成统一的评价体系；现有的工程项目管理绩效评价方法，诸如招投标的选择之类的零散评价方法，大多停留在项目施工的某一层面，评价方法适应性差，缺少综合评价。

Concentration of VEGF did not change in the absence of heparin and/or endothelial cells.

在缺少肝素和/或内皮细胞的情况下VEGF浓度没有变化。

Hereafter when you need anything I want you to come to me.

以后你如果缺少什么，我要你来对我说。

Hereafter when you need anything I want you to come to me. Do you hear?

以后你如果缺少什么，我要你来对我说。

Acting with uncertainty or hesitance or lack of confidence .

行动不确定、犹豫或者缺少信心。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。