必不可少

This paper presents a nonlinear real-time simulation model for current transformer considering saturation and hysteresis.

电流互感器电磁暂态过程仿真，在电力系统动态仿真系统中是必不可少的，为此提出了一个电流互感器的非线性实时仿真模型。

For many, work or school is an essential part of life.

对许多人来说，工作和学习是生活中必不可少的一部分。

L-4S Smooth Deep Tread Load/Doze 10km/h 76m SS Sooper Scooper 铲运机用光面轮胎 A superior undergrond mining tire is used when maximum wide and extra-deep tread is imperative,This strong nylon construction tire with special tough wearing tread rubber provides tire life in the most severe underground mining conditions.

宽行驶面、加深花纹轮胎在地下采掘施工中是必不可少的。本产品所具有的高强力尼龙胎体结构和超强耐切割配方使轮胎在各种恶劣的井下作业条件下，具有抗切割、耐磨耗、寿命长等特点。

The diagnosis of scrub typhus is mainly based on the clinical data, laboratory tests and epidemic investigation.

恙虫病诊断主要依靠临床、实验室及流行病学调查，影像诊断为非特异性的，但在判定并发症和辅助诊断上必不可少。

Those who go after dead skin is moist indispensable, because skin moisture is enough, scurfy possibility is jumped over since small.

去死皮之后的滋润必不可少，因为肌肤水分充足，起皮屑的可能性就越小。

Criticism and self-criticism is an integral part of one's success in career.

批评和自我批评是事业成功的一个必不可少的组成部分。

Sales skills, organizational skills, and self-directed time management skills will be essential for those in this position.

销售技巧，组织能力和自我导向的时间管理技能对于这些职位将是必不可少的。

Self-education is an indispensable part of one's life and work.

自学在人的一生和工作中是必不可少的一部分。

They are the possessions of the autonomous (self-governing) man of traditional theory, and they are essential to practices in which a person is held responsible for his conduct and given credit for his

自由和尊严是传统理论定义的自主人所拥有的，是要求一个人对自己的行为负责并因其业绩而给予肯定的必不可少的前提。

They are the possessions of the autonomous (self-governing) man of traditional theory, and they're essential to practices in which a person is held responsible for his conduct and given credit for his achievements.

自由和尊严是传统理论定义的自主人所拥有的，是要求一个人对自己的行为负责并因其业绩而给予肯定的必不可少的前提。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。